In my boy pants, I keep my wallet in a back pocket (alternating sides), keys in the front right, and phone in the front left. Of course, I have a 10-year old dumb flip-phone and not a modern hulking glass behemoth. I used to carry an iPod touch in the back pocket that didnt have my wallet, but I've given up on that. Occasionally I keep a small moleskine notebook there. Change goes in one or the other front pockets, and as others said, gets emptied daily and only replenished when I spend bills and get change. (This is in the US where all the cash worth mentioning is wasteful green paper. In countries that use coins more effectively I would have to change the habit, but that hasn't come up enough that I have solved it.)
For daily life, I don't need much more than that. If I do, I carry either a backpack or a laptop shoulder bag.