Ideally you would have both steel bars AND force-fields, both of which have to be deactivated/unlocked before the prisoner can leave the cell (not counting anyone who goes all Andy Dufresne on us).
Why do you want force-field doors at all?
I see their applications for things like, say, erecting containment fields on the spot. But there’s such a thing as too much tech, or tech in the wrong places. Force-field prison doors are like the remote for opening the gas tank on my car: a pointless complication that adds no real functionality and is vulnerable to unneccessary problems.
I don’t know about that. I’m pretty sure that you want a pan to be low-friction, but not entirely frictionless. With a frictionless pan you’d have to be careful adding things, as too much momentum would cause them to slide right off the other side of the pan. Even worse, if you’re cooking something liquid, there would be no external damping of internal motion. You could easily stir up some combination of waves that would all add up to shoot up or slop out.
Hmmm… I hadn’t thought about liquids. Solids I wouldn’t be too worried about - just give it decent sidewalls, and I don’t think there would be a problem. I’d guess stuff might move around a bit more than we’re used too, but generally that’s not gonna be an issue. Now, ideally, you use a variable-friction field generator, so you can keep liquids from tossing around too much. Although, thinking about it, in some situations, that would be fine - you could stir your gravy once, and as long as you were careful, just leave it stirring itself. I’m thinking mostly these could just be built in to the stove - other than a few things that need swirling or tossing, having a 100% nonstick griddle (although I guess you would need walls, so not really a proper griddle) that never needs cleaning would be amazing. It’d be great if you could do an in-pan one too, though.
Transporters for storage. You build a big self-storage facility somewhere where land is cheap. The customers have a transporter in their houses that lets them put stuff in it or take stuff out. You can have as much stuff as you want with no clutter in your house and no inconvenience of having to leave the house to get things from storage. Or you can have a huge walk-in fridge or freezer in every home, even where there’s not room for one.
A handheld model would make a great flyswatter. Or weed killer, if it worked on plants. And Mafia hitmen would probably pay a lot for it, especially if it didn’t cause any characteristic damage to a person it killed.
Maglev technology to keep you from tripping and falling in the house. Set it so that some part of your body (say, your butt) can’t get closer than a certain distance to the floor. Then, even if you slip or trip, you don’t fall down, and you’re less likely to get hurt. (says the person who banged her knee slipping on a rug in the living room while rushing to answer her cell phone yesterday)
Some sort of force field on the floor in a house that slows down anything falling toward the floor, such that nothing could ever hit the floor hard enough to break if it were dropped. It would be great for the elderly, clumsy people, and children, too- keep them from falling and hurting themselves. You might even be able to get it so that the item stayed where it was dropped, too, instead of bouncing or rolling somewhere else and possibly getting lost.
The ultimate in mundane uses:
The Force choke is perfect for squeezing the last bit of toothpaste out of the tube.
Yeah, but I couldn’t do it with actual artifically grown bone. (And teeth) 
I think you can either now or we’re very close.
You use the cad/cam to build a matrix for cultured osteoblasts to form bone on. I don’t know if they can grow teeth though.
As always, Homer Simpson sets the standard here. He bought a transporter from Professor Frink, and sat one end in the lounge and the other next to the fridge so he could reach in a grab a beer without leaving the room. He also set the second end next to the toilet so he could pee without missing any TV. The man is a genius.
The lightsaber article on HowStuffWorks devotes a page to this question. They’re not just for cutting off your father’s/son’s hand in duels; they’re also for slicing and toasting your bagel in a single pass!
Just grab your twin brother and scrape away the excess material.
I can see the utility for holding some shapeshifting/highly flexible species, I guess. But generally, the ship’s brig is there to hold people from your own forces for discipline, isn’t it?
Hell, I have a problem with the swishy doors too. But I guess we have those everywhere nowadays, too.
Me, I’d like a Predator cloaking device. It’d let me kick ass at paintball!
Maybe. But shapeshifters are generally a tiny, tiny minority in sci-fi universes; certainly they are in Trek. If I were trying to keep one of the Founders confined, I’d want a special-use cell anyway, as certain things have to be eliminated as well as added. (You don’t want to give an imprisoned & presumably-pissed off Odo access to your plumbling system, for instance.)
Yeah, a bottle with a screwtop inside a sealed Dewar flask towed 100m behind the ship.
I won’t even argue with that, except that I’d place the bottle actually holding the changeling inside of a second container filled with some substance the changeling will find extremely unpleasant to touch.
I peed into the Dewar flask, does that count?
No one wants to hear about your sex life. I know; I checked the entire world.
Makes me wonder - does the Defiant class come with a tow hitch?
Where else would Worf hang the truck nuts?
When they want to tow something, they just use the tractor beams and skip the “reel them in” part of the process. It’s come up a few times.