All this abstract talk is easy when it's not your relationship. Even in open marriages, it's not always a blank check. It might depend on who it is. So it's pointless to ask for a blank check before you even do anything, and perhaps might not do anything. If it comes to a point where it's a valid question, it would be for a specific person or situation, and I've always been pretty good at being open with everyone involved. This is a situation I can solve and really don't need anybody else's advice on. The hard problem for me has been getting my wife interested in sex.