RickG said:
We split evenly and do a boat kitty. One of our crew wants to put everything on her credit card that she can, so she gets fuel and things like that. I run a spreadsheet and do a statement and folks send me their checks and I write checks to folks who get a refund. We don't invite folks who are whiners or who obsess about whether the should have to pay for individual items or ingredients.

Cheers, RickG