Things for yourself, or your kids or SO, going out to eat, activities etc....anything that you don't need.

I would say I probably spend... $50 per month on things we don't need. A coffee, a book, something small for the girls. Otherwise it's all necessary...I feel pretty good about spending habits. I think I've gotten better about it over the years, I spent a lot more when I was younger on things that weren't needed.

ETA: $50 is on an average month, if we go out on a date night it would obviously be more, but that unfortunately barely happens.