I tithe to God, tithe to savings, spend the vast majority of the remainder on essentials (gas, food, insulin, etc), and the rest goes half to my emergency fund and half to spending. That usually gives me about $25 a week to spend.
If I had a job that gave me medical benefits, I would practically be rich compared to how I've lived my life to this point.
My credit is a pile of dump. I get forbearances when I can, but right now I'm not paying off any debt in either case just for sheer lack of funds. I have about $12,000 in debt because I made the completely stupid and financially counterproductive decision to go to college for a year, and I do plan to pay it off, but it's not a priority. I don't plan on using credit much anyway in the future. Cash or no deal, I say, and barter is better. I'm done with debt forever after I get my college loans paid, even if that means renting cheap for a long time until I save up enough to buy a house without a mortgage. I'm dead serious about that. I believe that people should defer consumption instead of going into debt, and I will practice what I preach.