I have a fob for the car and use a key card for the office and another card for the parking garage. My bike uses a combo lock. So I only use one key regularly, for my house.
3 or 4, depending on how many doors I need to open at work.
Since I retired, two (one for the house, one for the car).
Before I retired, those two plus the one for my office door.
On a typical day, I use no keys. I have a fob for my car, and a badge to get into my office. I occasionally check the mail, but my husband usually does it. Lots of times he uses my key! But that doesn’t count, does it? To get in the house I usually use the car’s garage door opener. The front door has a push button combination lock if I’m coming in that way.
I already said I typically use zero keys on a given day, but I always have fifteen on me, plus four electronic fobs.
One for the house, and one for the motorcycle
Three, usually: the apartment, the mailbox and the basement entry door (but only if I’ve come back from shopping or am getting something out of the storage locker).
Four - I have two for work (though I am only using one or the other on a given day), my house, and my car.
I carry nine keys on my keychain:
- Car
- Housekey #1
- Housekey #2 (our deadbolt is keyed differently than the doorknob. Kind of a pain, but not enough of a pain to have done something about it. I almost never use this key.)
- Work key #1
- Work key #2
- Four keys that I don’t remember what they go to. I could probably remove them and throw them away. I am 100% sure I will never use any of them again.
D and Bm are best for my voice. Sometimes F 
Three. House key. Mailbox key. Gate key (I live in a gated complex). If I go in/out the driveway gate instead, I can use my remote.
Just one, for the house.
I love my car key fobs, except that, at least once a week, I sit down with it in my pocket and it sets off the car alarm.
mmm
Not quite that often for me, but yup. Even worse is when it pops the trunk and I don’t know about it until my neighbor calls. Had some light stands and a sample wedding album stolen that way. Luckily, nothing too valuable that I needed to replace (except have plenty of light stands.)
At least some modern fobs require a double-press on the trunk button to trigger it. Whether that’s to prevent purse- / butt- dials or for some other reason I can’t say. But it would tend to reduce them.
Mine requires a “hold,” which, when sitting on it or having it pressed up against something, is easy to do. I thought I had read there are ways of disabling it on some cars, but I didn’t find anything for my 2014 Mazda 3. Or maybe that was just a way to disable the interior trunk open button. I was going to tape some weight to it so it wouldn’t be as obvious if it pops open, but clearly never got around to doing so.
On my car, the trunk unlocks, but doesn’t pop open, so there is no visual indication that anything is amiss if I have accidentally sat on the trunk button. I only find out about it when I start driving and the “door ajar” light comes on, which I have learned through experience also illuminates when the trunk is open.
I guess a benefit to that is that it’s also not obvious to any potential thieves that the trunk is unlocked, not that I keep anything valuable in my trunk.
I am curious as my car fob is also a beast. Can you tell more?
Yeah, and so are mine, and I have two.
They are identical, other than the color-coded stripe I applied.
mmm