This story is a sequel to Barnyard Barge-Ins
Shopping carts cost money. Nopony outside the staff at Barnyard Bargains seems to understand that. Carts are taken deep into Ponyville, repurposed for any number of activities, never seen again... and Mr. Rich is sick of buying replacements. So it couldn't hurt to use a few new magical and mundane methods of keeping them around, could it? No harm whatsoever possible?
The two-word answer: 'It's Ponyville.'
(While this story takes place after Barnyard Barge-Ins, it can be read as a stand-alone: no knowledge of those events is required.)
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