Dime Night* Get a box and fill it with the weird little trinkets, strange canned goods, and no-longer-needed items sitting around your house. Great sources include your coat closet, your kid's toy bin, your garage, and your pantry.
* Invite 5-10 of your girlfriends over. Tell them to fill their own boxes with stuff, and bring 'em along with a baggie full of change.
* Sit around drinking wine, eating cheese, gabbing about your kids and your parents and your husbands, and bidding on the items your girlfriends brought over.
* Start the bidding on each item at one dime, and see who can come up with the best marketing campaign for their old hairdryer, the ugly novelty photo frame their MIL gave them, or the pair of St. Paddy's Day socks they grabbed on impulse at RiteAid last year.
* All proceeds go into a pot, and at the end of the night you donate the kitty to your favorite church or charity. Any leftover items can also be donated (or saved for the next yard sale).
This leads to some seriously fun times, ladies. Be creative, too, in the items you auction...some of my favorites have included a used maternity bra, a sequined red gown, and plastic lawn flamingo.