If you can get other neighbors interested in having a garage sale on the SAME DAY next spring, be sure to put ALL the addresses in the ad, so that people all over town know that by coming to your house that there are SEPARATE households also having sales.
105,108,121,122,154,199 Main Street; Sat. 8-3
OR
SIX family garage sales. SAT.4/23; in the ALLEY on the 100-200 block from Marsh St. to Thrush Av. at the intersection of Happy Blvd.
When an ad says, "multi-family," around here all that really means is, "i'm also selling my sisters and father in law's junk, too" -- so it might mean the same in your area, so be careful --- having a box of stuff from sis to sell does NOT constitute a 'real' multiple families sale -- and by the examples above, it shows that separate individual families all close in vicinity are having a garage sale day -- and this will noticably increase traffic.
Do NOT close up before the time listed in your sale.
Plenty of people do NOT like going first thing in the morning and fighting with dealers over the "good stuff," it's just not worth it, too unseemly, almost depressing to watch adults converge upon tables & racks of garage sale mdse.
LOL
Be sure to put the DATE on your signs - there are so many people who never take down their signs, and so unless the date is specified, I don't follow any signs around here. Maybe things are different in your specific neighborhood.