I have a little red wagon too, and use it for gardening. It hauls my gardening tools, gloves, buckets and stuff. There's a story behind it which goes along the second life subject... a few years ago my husband and I used to visit the scrap yard pretty regularly in search of metal and interesting old items for the garden. I had wanted a trellis entrance to the backyard, so looked at the local garden centers and thru mail order catalogs. Very expensive, and a lot of them looked like they'd blow away in the wind. Anyway, at the scrap yard we found a bunch of old black wrought iron-type fence pieces. Eureka!! My husband borrowed my dad's welder and made this really cool trellis by cutting and welding up this fencing.
The same day we found the fencing, I spotted an old Radio Flyer wagon. The handle was bent, it was really dirty, but we scraped out the dirt (from the inside), rebent the handle and it rolled along fine. One of the owners saw me with it, however, and said I couldn't take it. They "used it" (yeah, right).
Later for Christmas or my birthday (can't remember which), I got my little red wagon as a present. New, but there wouldn't have been anything wrong with putting that old one to use either. I've given a lot of things a second life, and call me strange, but it can be more satisfying than buying new.