A heavy key ring can mess up the ignition of your car over time, among other things.
I realized I never really used my house key, so I took it off. The garage door opener in my truck did 90% of the work when I got home, and for the few other times, the numeric keypad remote on the wall for the garage door opener did the remaining 9%. I've got a key lockbox in the event the garage door opener or something fails. I suppose this is theoretically marginally less secure than a key that is in my possession at all times, but having a dog means anybody who's breaking in is already very determined & wouldn't be slowed down by that anyway.
I ditched the car alarm fob for my wife's car as I rarely drive it & can just use the key.
I have my truck key, truck key fob, wife's car key & the mailbox key. Work keys are on a separate ring & mostly stay at work.
Try and get your locks re-keyed to use the same key, so you can replace multiple keys with 1 key. Also get rid of decorative junk on your keyring, they don't serve much in the way of a technical purpose, but add weight & bulk.