A veteran garage sale expert knows how to case a neighborhood by population data. Usually the study is more informal, but hard numbers as well as experience back up our choice. The Macalester-Groveland neighborhood boasts that 64 percent of its residents have college degrees. The median income is 17 grand higher than St. Paul as a whole. That leads to two things—higher quality items and more frequent garage sales, as residents shuffle off last year's crap to make room for new models. With an average of only 2.22 people per household, you'll see fewer sales bloated with that bane of garage salers, baby clothes. And let's not forget those fat cats lining Summit Avenue, who admittedly rarely choose an avenue so pedestrian as a garage sale to rid themselves of excess stuff—but when they do, it's a secondhand shopper's dream.