Thought you Redditors would appreciate this, Costco in Sunnyvale, CA has it's own street named after it (because it's a street that leads to the parking lot, and has a stoplight intersection to control traffic, I guess). Parking lot is a tough one to navigate, though, and always has been.
Put a trimmed boba tea straw right there for my Square Deal B. Now spent primers ALWAYS land in the spent primer catch bin, and don’t go rolling around on my floor any more. Pretty much free, so easy, and the slight compression you see there with the straw holds it in place firmly. I’ve seen this elsewhere, so I can’t take credit for inventing it, but just wanted to bubble it back up for others to try too.
ETA: I said "cheap and free" in the title which makes little sense. I should have said "Free and easy".. blah