Originally Posted by Sly

If you have leftover cash, contact all of your vendors and any services you do business with. Ask if they give a discount if a year is prepaid. Many companies will give between 5-20% discount.

Pay these first. If you still have leftover money, then start knocking out advance payments to services that you know you won't cancel. Domains, web hosting, software, etc.

Also consider any services that you use that are "balance" based. As an example, do you buy a lot of traffic or a lot of domains? If so, you can park some money in those accounts until you actually need to spend the money.

Outside of those, consult with a tax lawyer that has worked for the IRS. I did this last year and it totally changed the way I did things and opened my eyes to a few opportunities I was missing out on.