I tend not to loot very thoroughly, and to leave most stuff that doesn’t have a use for my party.
It depends a little on the character I’m playing as I try to make looting part of the roleplay. So if I’m a paladin focused on saving innocent lives, I’m not going to stop to rummage through anything but the most promising looking crates or search most corpses, whereas as a curious rogue I might spend more time looking about me, rifling through pockets and exploring side paths.
And even if I look in crates or search corpses, past the first couple of hours once I’ve got basic equipment for my party, I don’t pick up normal weapons and armour, or bottles or other non-useful items except things like gold/silver bars and plates. And once I’ve picked up enough food for a few nights I tend not to pick up more than one more day’s worth. I tend not to use Send to Camp for looting, or at least I didn’t in EA and don’t intend to for future playthroughs, but in my first run I did as I wanted to hang onto various weapons and pieces of armour that I’d normally have left or sold so I could take stock at the end and consider items for future builds.