I noticed recently that this place, next to the old Galaxy World arcade was vacant, but had no memory of what it was.
The sign was inside propped up against the window, but I didn't want anyone thinking I was fooling around with their car, so I didn't get out. Google says it was a party rental store, Thompson's Grand Rental Station.
I'm sure that wasn't the first tenant though. The building is another one of those buildings "of a certain age" in Columbia with rock facades, and the odd little bay-window nook on the back side looks as thought it may have been a drive-up window at some point.
According to my fuzzy memory, this little stretch of road, now elevated above Two Notch proper was once Two Notch itself before I-77 was cut through. I also think there was a little locksmith kiosk up there for a long time, even after Two Notch moved.
UPDATE 12 September 2012 -- It's now a Harley store: