I live in California. Every time I go to a fast food place I always steal some plastic straws and I hoard them. Tiny shampoo bottles are now on my hoarding list.
It's not stealing if not posted! We also collect napkins (if available), and those little containers for sauces (we fill them with the free sauce). I told my wife that if we brought a small jar we could fill it by pumping the stuff into the jar (ketchup, bbq sauce, etc.). Excessive use but not theft as long as you buy their food!
Dollar store is your friend.