Congrats!!! That's a big step.
Personally, eating out is my most unexpected (and killer) expense. Food really shouldn't cost more than $30 a week, at most... and even that's a lot.
Whoever talked about budgeting... DO IT. There is no better way to get a hold of your financial situation and figure out how much you can save. As for me, I make about $1200 a month and 40% of that is rent... the rest goes down the drain with food, gas, and various expenses (I'm at poverty level, basically... ah, grad school), so budgeting doesn't do me much good.
When I used to make more money, budgeting was really helpful to figure out where it was all going, and then to set aside savings each month. I need to get back into that discipline.
Damn Martian, smokes are expensive! I never knew how much they cut into a budget (but I don't smoke)... I guess my vice would be shopping.