I mostly park in a space bit if I know I'm gonna be quick I park in the yellow lined area that's usually around poles. Especially since hardly anywhere has bike parking outside of major cities.
I park in a parking space, all the way up to the stop block, usually as close to the store as possible. Then after shopping, watch as folks think they found a good one, only to find my bike there. Seems to really **** 'em off.
I park my Supermoto on the sidewalk sometimes, living in a college town its pretty common to see. The 48 doesnt like curb hoping so it goes in a space. Usually on the end of a row if possible.