Scavenging is a huge part of any post-apocalyptic setting, so here's one.
As you can see, he has a shotgun, the most practical weapon for someone that has to deal with all manner of enemies, from mercs and marauders to mutants and cannibals. On his belt is a long knife which he could use to do some prying, slicing and skinning, removing precious glands from animals (to be seen later), and of course, self defense.
He has a large pack, and numerous pouches for holding goodies. Any small valubles (canned food, bottled water, tools, bullets) can be stashed in the pouches, while larger items (weapons, scrap metal, packaged clothes, containers) can go into his backpack.
He also has a crowbar, very handy for both getting into places, and as an improvised melee weapon in a pinch.