I have 3 boxes that I need to return to Amazon, and they only gave me 1 label, but the items came individually in their own 24" x 30" x 6" boxes, and I don't have a box that can fit them all. Because they're all identically sized, and I had a fancy-schmancy machine, I could strap them according to UPS guidelines. The local UPS store doesn't have (or won't admit to having) a strapper.
My ideas have been to use a bunch of paper from paper bags along with a bunch of tape to basically make a form-fitting "bag"...but that might get shredded pretty quickly. I could also manually strap them with some wire (soldered together), but the guy at the UPS store might give me some grief about my homebrew strapping.
What's a good way to bundle 3 boxes into one for shipping?