I went so far as to scan campgrounds for noisy lanterns with pump-mechanisms, so I could bum a pint. Didn't feel real classy, but gave $$$ and told the dudes to buy an ice cold beverage on me. When the missus was giving away fuel, I just said nice things.
One hears of places that will fill your pint canister, but couldn't find any when I tried. SO I thought I'd ask the pros.
You lightweight, speed bikepackers burn no fuel at all?
I burn Esbit and just carry with me what I need. Usually I can make a 14g tab (1 full tab) go 2 days and I usually bring one extra if I think I might make an extra tea or something. Otherwise I always have one as part of my emergency fire and you can burn the darn things on a rock with other rocks as a pot stand if you really want to be crazy. I just carry a 11g "ti stove/potstand".
EDIT: If for some reason I was on a really long trip and didn't want to pack fuel, I'd just make a small fire to cook on. I've tried it out and DaveC did that on our hiking Yellowstone trip and it works fine too. For "racing" the fire building is too slow and Esbit cooks my food while I do other stuff (map, reorganize, etc)