this is a photo from France, I took my Trangia and sometimes the smallest container of 90% alcohol I could find was this size, probably 1.5 or 2 litres. Kinda heavy to schlepp around but as someone else mentioned, if you had to buy a large bottle of camp fuel, whatever the type, splitting it up between the group would be nice..
I'm a big fan of Trangia stoves as well. They're bombproof.