Rosella00:I was wondering if there are any unwritten (or, if they're not unwritten, maybe they're just hard to find, at least for me) protocols as to when you should take a "gimme" putt, or if you are free to take one every time one is offered.
It looks like you're referring to coin games. If you are playing in a coin room where a gimme is offered, take it. It moves the game along, and you are breaking no unwritten rules or protocols by doing so.