DON'T deposit your "off the books" tips in the bank, whatever you do. Trust me, I was a bartender for 6 years (and actually i still do it on the side a few hours a week). You're gonna be in a whole lot of s**t with the IRS if they start poking around in your finances, and after a recent bankruptcy you will likely be more noticable on their horizon for a while. The only exceptions here are if your tips are on the books (i.e.- your boss has a book where every shift you declare the amount of tips you made so you can pay taxes on them). Where I'm working now im really lucky, my boss is 89 years old and if he is ever asked he just tells the tax men that it is a small neighborhood pub and his employees don't make tips. It is better to keep undocumented income like tips in cash money and spent as disposable income (gas, groceries, etc.) and not in the bank where it leaves a paper trail. If they go snooping around and find that you are not paying taxes on your tips, they can potentially charge you back taxes which is usually somewhere to the tune of 30% of the total earnings of the till every shift. Again, I'm just warning of the worst case scenario, but believe me it sure isn't worth taking the risk. The odds aren't the greatest but I know a few people that have gotten royally screwed by doing this. Bartending is only a secondary source of income for me, but if it is your primary, do yourself a favor and either declare your tips for tax or don't spend them on anything that could raise questions later. By the way, it IS ok to deposit the amount you get from your hourly rate, as that is all legit, just not the tips unless you have declared them.
Sorry if that went off topic a little, just some friendly advice