Oops - sorry... Wrong forum.
In all seriousness, I used to have all kinds of crap in my pockets when I golfed - no idea why but it was a PIA. Have since downsized greatly:
Right front pocket - a few tees, ball mark repair tool
Left front pocket - empty
Left back pocket - empty (keep glove here when putting)
Right back pocket - scorecard and pencil when I walk (which is often). Otherwise empty.
Ball marker on a hat/visor clip and one tee usually tucked behind my right ear or in the strap of the visor.