Cash. Paper money. The goobermint can’t track it, gotta go electronic.
I wonder if all broadcast TV won’t disappear for the same reasons.
We’re seeing the disappearance of the idea of showing different kinds of TV shows at different times, replaced by specialized networks (if you want to watch cartoons, you go to Cartoon Network or Nickelodeon rather than waiting for Saturday morning) and DVRs.
What she was saying about FCC control- she meant that the FCC will re-assign the part of the spectrum that broadcast radio used to use for some other purpose. It doesn’t have anything to do with their regulation of content.
Speaking of spectrum assignment, I’m afraid we may see the end of radio astronomy due to spectrum encroachment.
We’re seeing the end of the era where most people can’t be reached anytime, anywhere. There are some story plots that won’t work in today’s setting without explaining why the characters don’t just call each other on their cell phones.
I’ve seen the end of the idea of “waiting for a call”, at least for the most part. If a call is important, they’ll leave a message on the answering machine or voice mail. No biggie if we don’t pick up the phone.
I’ve also seen the end of the idea of staying off the phone because someone is waiting for a call. Everybody has call waiting now.
There are other reasons why cash is going away. Cash is less convenient than credit or debit cards- you have to get the right denomination of bills, and that’s leaving out the inconvenience that is change. If your cash is stolen, too bad for you- not so with credit or debit cards.
We’ve seen the end of the idea of “important papers”. Any important papers we have now are almost certainly just a copy of a computer record somewhere that we could get if we needed it. It’s not like it might once have been, where you’d be in trouble if you lost a specific piece of paper (a marriage certificate, birth certificate, deed to your house, or something like that).
AFAIK, you’re still in trouble if you lose your birth certificate, at least you were 4 or 5 years ago. I had to go to Capital City (Richmond) and sit around in a waiting room for a long time to get another copy.
Memorizing phone numbers. I used to have a whole bunch of them memorized, but now I can barely remember my own home phone number. They’re all in my cell phone, and that would be what I’d use to make most calls.
But it’s not as if it’s gone forever if you lose it. It might not be terribly convenient to get another copy, and you might have to jump through bureaucratic hoops, but you were able to do it. (Bureaucratic hoops, like the fax machine, will probably outlive civilization. “Bureaucratic Hoops” would also be a good band name.)
You’re not a veteran, are you? Losing your DD-214 is still a huge, huge hassle if one wants to get anywhere with the VA. Which is ironic, considering that the VA has pioneered the use of paperless records for medical treatment. Especially if one might be one of those poor schlubs who’s records burned in the 1970s.
I want to echo The Them. Pennies and to a lesser extent nickels are on the way out. Considering the vehemence I’ve seen here on the Dope against coinage, in general, I wouldn’t be surprised to see circulating coinage become a thing of the past. I’m not predicting it, mind you - just saying it’s a possibility.
I don’t really feel like trusting a company with my music. I like to own stuff and be able to physically have it. Get off my lawn or I will decapitate you with a bolo slug. Anyway, even if I did at some point embrace this system, I’d still burn all my music to CDs to back it up physically.
Male pattern baldness.
(fingers crossed)
I actually just started using them. I signed up for this Grocery Game thing and have started clipping coupons. Last Sunday I went to the grocery store and spend $85 and saved $77. Like to see you do that with a loyalty card.
Granted, most of that was store specials rather than coupons, but a good 20 bucks or so was coupons.
Boy, there’s been an awful lot of faith displayed among the majority of responses in the power of the Internet. Just because many people under 30 are so familiar with it doesn’t mean it’s the end-all, be all. Companies that deal in a physical product such as newspapers and paper billing will never be able to do away with them completely as long as there is no law requiring a person to have an Internet connection. Believe it or not, millions of people don’t. The same with cell phones and e-mail addresses. I am often asked for my number/address when buying something, and I just say I have none. They always look at me funny, but hell, it’s not as if I HAVE to have either to exist. (I do have both, I just consider them privileged information, a reasonable attitude that could qualify as endangered itself.)
And coupns? I see them all the time. The grocery store I use here prints them on the back of my receipt. They wouldn’t bother if no one used 'em.
I don’t think rented music or online storage is going to become standard. Music is just now losing it’s DRM and local storage is getting cheaper and bigger all the time.
I will admit that there is an element of wishful thinking in my thinking that stuff like important papers, paper bills, and coupons will disappear. I’m terrible at keeping track of papers and keeping them in any kind of order. The computer and the internet are absolute godsends for me because of that. I would like it very much if nobody ever had to keep track of important papers or bills, so I would be at no disadvantage. As for the coupons- I will never benefit from them, because I’m too disorganized to keep track of paper coupons, and I would like it if other people didn’t use them either so the checkout lines would move faster.
Filing of taxes non-electronically.
I’d predict that at sometime in my lifetime there will not be an option to manually do your taxes by hand and mail them in.
All federal and state taxes will have to be e-filed either by oneself or through a tax prep service.
At this point, with 300GB drives going for about $90, it’s worth it to have your music on two drives just in case, isn’t it?
Typewriters have already gone the way of the high-button shoe, as my mom, born in 1918, would say to describe something that was obsolete. 
I think the cultural references to the typewriter will also be gone. Pops orchestras will no longer perform Loyd Anderson’s The Typewriter. WARNING: Link to a sound file.
NPR will stop using typewriter sounds to introduce their “letters from listeners” segment.
I think every kitchen appliance that has an analog interface will go by the wayside. No more dials on stoves or dishwashers. No little sliders or dials to adjust the temp of the fridge and feezer.
Unpretentious food.
Every foodstuff is getting wankified.
Organic fairtrade freerange sun-blushed goujons in Thai banana sauce and the like can get off my lawn right now.
I don’t know - for adjusting gas flow to burners, analog seems just more convenient than a digital interface. Why go more complicated than a needle valve?
Keyboards, I’m thinking soon all computers will be voice recognition.
Fruits and vegetables. Their time has come and gone. Soon all will be juices. 
Ovens/stoves will be luxury items. The average kitchen will have a microwave, fridge and sink.
That is not a good one although it has been predicted for some time as has the video phone. You can do either now although hardly anyone ever does because of lack of benefit and tons of drawbacks. I work in an office of 1300 people and my job is almost completely computer dependent. I am a development manager and a developer myself. There is no way a keyboard could be replaced by voice recognition. It just doesn’t work that way. I work on programs that are thousands on lines long yet they depend on very precise placement of minor characters. It would probably take me a year to explanation to a voice recognition package what I want to do with a given package. Remember, one character that is wrong means the whole thing is wrong whether it is 100 lines or 100,000 lines. You can’t replace a keyboard for that especially for speed.