To keep, or not to keep........

Half a coupler here, half a coupler there.....put the two halfs together you should have a hole one.....right?Like everyone else I keep a lot. Boxes that locos and cars came in are handy for transporting them. Structure boxes...recycling bin!
 
Hold it!!
Before you toss that structure box out...check out what our friend Robin (Mathyro) can do with a cardboard box!