Staying at a hostel once and awhile can actually be rather profitable. Stay at the ones that give you unlimited breakfast (20 pieces of toast for breakfast anyone?), raid the free food pile and don't be afraid to raid the instant coffee/tea/jam/soap stashes to refill your own. Also good for 'borrowing' forks, spoons and frying pans.

Also try staying in campgrounds with a lot of expensive looking RV's and try to camp in close proximity to them. Make up some story about why you don't have any cold beer. The best targets are the 50+ year old couples in motorhomes. Never not got a beer yet LOL.

EDIT: Guess I'm the last poster so I might as well add this on. A tire iron/lever makes a great butter/peanut butter/Nuttela spreader.