I’ve got wallet and lighter front right, phone and cigs front left, and keys on a carabiner tucked into back right. Back left is basically always empty.
Other than that: If at work: cargo pants so top 2 pants have nothing normally, back left or right keys, bottom 2 left have phone and right has my wallet (actually a pouch so one pocket actual wallet middle pocket small olight, nail clippers, comb, hand sanitizer wipe, chapstick sometimes a Gerber eab. Other outer pockets on wallet hold zebera M301 and P701, with a highlighter.)
If not at work nextool mini sailor scissors and keys on left with wallet on right. Sometimes I carry a sak tinker instead of the mini sailor or Gerber.