The main thing is to get an ad in the paper on the day of the sale, I think Saturdays seem to be a more popular day for it. Give the street name but *not* the house number, or people will be knocking on your door before the advertised time. Don't put your signs out until you're ready to start trading, for the same reason.

Price things looooow. The point of the exercise is to get rid of stuff, not to make bags of money. Have lots and lots of change, coins and small notes. Keep them in a bum bag on you, not in a cash box. Make sure your house is locked . If it's a warm day, think about having an esky of canned drinks there to sell too. Label everything (because some people won't ask), but be prepared to knock your prices down if it means you'll sell more. At the end, if you haven't sold everything, pack it up straight away to take to charity (or phone them to collect if you have large furniture items). Obviously they only take clean good condition things, so if anything is rubbish, get rid of it first.

This is a really good time of year to have a garage sale, I have noticed lots of signs etc out the last couple of weekends so you should get some good traffic through. Good luck