Around here, Friday is the big day. A lot of people will do a late Thursday from 4-7 but I don’t see the advantage. Fridays are busy. Saturdays are somewhat less so but you get more families who will do things like slowly go through the clothes and buy a heap, or buy bags full of toys. Friday I usually sell the big items like furniture, and most of the high-value items, but Saturday’s nice to whittle down the pile that goes to Goodwill. The bargain hunters all come Friday, maybe early Saturday if there aren’t a lot of other sales. I never bother with Sunday. I do a full day Friday and usually about a half day on Saturday. By lunchtime or so, people are usually pretty scarce.
Don’t hesitate to say no to a haggle if you don’t want to. The pros will rush through right away. If they hem and haw and say oh, that’s way too much for that table, but it’s right after you opened, smile and say you’ll take their number and call them if you don’t get a better offer. Unless it’s more about getting rid of junk and less about money, of course.
Price everything clearly. Borrow tables – people don’t like to rifle through boxes. Stuff at table level sells. Move stuff to empty spaces on tables and into sight – people will drive by if things look picked over. Price things at even numbers (nothing lower than 25 cents). Grouping similar items together is a good idea. For example, I had a bunch of beauty products (sealed). Rather than trying to sell a whole bunch of little things, I just grouped them into plastic kitchen bags. They all sold.
In terms of advertising, I have a good location near major streets so I just did signs and Craigslist, and I got a ton of people. Don’t put too much on the sign, and make sure they have clear arrows at each intersection.
I have had thieves come through. Honestly, I don’t care enough about my garage sale stuff to have a person there specifically to watch for them. One person got away with about 6 VHS tapes from about 1990. Oh, no. Anything higher-value just goes on the checkout table. An extra hand is good, certainly, especially if it rains and you need to get stuff inside quickly, and to periodically check signs, but I don’t see the point in treating people like criminals. Honestly, if you need stuff so bad you’re stealing from a garage sale, yeesh, just take it.
Make people comfortable. A canopy to get away from the sun was a popular lingering spot – I’d keep moving items in there, and they’d sell. Nobody wanted to go even 10 feet away into my enclosed patio so I kept moving stuff out of there. I also had drinks available. Don’t hassle people and let them look - a friendly hello is fine, but don’t stare. Keep grocery bags for a few weeks for people to take their stuff away. Also, move your car so any rockstar parking spots are free to use for people stopping.
Have something to do! While I was genuinely busy for most of the time – I think I had at least one person shopping all day on Friday – people feel weird if you’re not occupied and they’ll rush through. Have a book, a game, play with your phone, whatever.
You’ll get a few pushy idiots. It’s your sale. I don’t mind saying no, or my favorite is “well, that’s not mine, so I’ll only take the price on the sticker”. I was genuinely selling a lot of stuff for others, but I used this a few times with morons who wanted huge discounts because there was a scratch or something (uh, it’s used, that’s why it’s priced the way that it is). For the most part, pushy people will take the deal anyway.
Don’t be afraid to reprice if stuff doesn’t move.