And speaking of grids-- nothing beats the cities of SE Florida. They have numbered Avenues (usually N/S) as well as numbered Streets (usu. E/W). Every town is divided into quadrants, NW, NE, SW, SE. Easy enough, but pay attention to the quadrant. My little house was on SE 4th Ave., but many visitors ended up at SW 4th Ave., in the middle of the town's major drug area. Then there are the little in-between streets. N/S (or perhaps E/W, I never quite figured it out, and each town seems to vary) are called Court, Drive; the opposite are called Place, Terrace. Or something like that. Theoretically, everything ---east is toward the ocean; but if you're at SW 223d Pl. that can be a little uncertain. Newer developments have everything named at random-- Hollyhock Lane, Thatch Palm Way, Patricia Drive, Hagen Ranch Road.