<prompt> Human: Currently I use them for day-to-day expenses like gas, if I go out to eat lunch, etc. but its so up and down that I dont where to begin to budget that money. There have been nights where I walk out of work with 200 on a wednesday and nights when Ive left with 40 on a FridaySaturday. We dont pool our tips together so its the wild west out there. Thoughts?  <response>: Dont budget based on what you earn. Dont go out looking for things for this money. Make your budget, and save the extra, regardless for how much it is. 