I hate having lots of crap on my keys. I have four keyrings.
One is for padlocks at work, on a folding DMT fine stone that makes them easy to find, and for touching up an edge at work-daypack.
Another is for locker keys and smaller locks at work-pocket at work, daypack away from work
Another has rarely used keys to the church, and a few other people's houses-truck console
My actual EDC ring has keys to my house, parent's house, best friend's house, and my truck. Opposite them a Victorinox Classic, Atwood whistle, and Arc AAA-P round things out. I "fold" the side with the keys against the side with the other stuff, and it takes up less room than a roll of quarters, with probably less than 1/4 the weight-daypack at work, pocket away from work