We do not have spending $ per se. We take out $20 each per week to have cash on us, but I rarely use it. If I want something I buy it and put it on the Visa because it gets points for vacation. If it is a large purchase dh and I talk about it (more than $100 or so) unless it is for ds or something we really need, I just buy it. For treats I just use my judgement and put it on Visa. Last week dh was in Israel all week and I treated myself to a professional pedicure, something I haven't done in more than 5 years!! It was $48 including tip and I did not even think about running it past dh, though I did tell him how nice it was when he returned. We both use our best judgement and trust each other.