You've been in a somber mood for days, but it's finally passed. You're officially ready to let loose and have some well-deserved fun. You're not at all concerned about how much it will cost you to do it up right either. The way you see it, you've earned it. Before you pull out the plastic and hire the band, though, think about how many inexpensive ways there are to have fun. The best things in life may not be free, but they're certainly negotiable.