First, your prep work is the most important part. And the most cumbersome portion of that prep work is pricing everything. Give yourself plenty of time to sort through all your stuff and price it. I highly recommend getting the round sale stickers with prices already on them. You can find them online or in just about any store in the office supply section. Another great option is to think about doing bulk pricing. For example, if you have a bunch of kids clothes in a bin you can just make a sign that says all pieces $1 or everything you can fit in a grocery bag is $5! That can help save a lot of time.
Setting Up Shop
By the time you get to 10:30-11:00 am consider putting up a sign in front of your house that says “Everything is 50% off!” since that is the time that traffic dies down and you will need to move it then or risk losing the sale! Better to get 50 cents for something than just take it to donation after that. Plus, if you do that, lots of people will buy more stuff, so you end up making just as much money and getting rid of more stuff.