Has your recent spending spree left you feeling just a bit regretful? Today, if you can undo any of the fiscal damage you did, you should. Take back whatever you don't need, and make a promise to yourself to be a little bit more tight with your money. You don't have to dramatically change your spending habits or turn into a cheapskate, but you should sober your spending. A big opportunity is coming up, and you will need more cash than you have to take advantage of it.