Wallet goes in my back left. Used to be my right but the way I sit that started to give me some sciatica issues no problem since I switched pockets. I also switched to a thinner wallet which probably helps as well but that came well after switching sides

Back right usually gets a bandana

Things move around between my front pockets a bit.

I usually carry a pocket knife and if it has a clip that gets clipped to the front right, no exceptions. If it doesn’t have a clip it could be in either front pocket, or possibly a belt pouch.

I usually have a pen on me and if my shirt doesn’t have a pocket that goes there as well.

I’ve been sporting a curly handlebar moustache for probably 15 years now, and if I’m wearing jeans or something else with a similar little watch/coin pocket, my tin of moustache wax goes there. Otherwise that tin goes into whichever pocket I find it’s rattling the least against whatever else is in that pocket.

Phone switches back and forth between my left and right front pocket, based mostly on which hand I was last using it with. If I was just aimlessly scrolling on my phone or texting someone I probably had it in my right hand so it goes in the front right. It occasionally also ends up in a jacket or shirt pocket.

If I was using it while I was doing something else, like maybe looking at a recipe while I was cooking it was probably in my left hand so it goes in that pocket.

If I have cargo pockets it sometimes ends up in one of those. One of my pairs of hiking pants has a pocket that fits it really nicely.

Keys generally get clipped to a belt loop on my right side, the case for my earbuds gets clipped on my left. Other times they end up in a jacket pocket or usually my front right pocket.

I usually carry a small notepad with me, like with the pen it preferably goes in a shirt pocket, otherwise it usually ends up in my right front, or if I have cargo pockets one of those.