For my glass jar candles, I take them in the original jar boxes like you do. I will usually put 3 boxes in a larger box to carry. More than that, and its usually more than I want to lift. Even with a cart, you still have to do some lifting. Hiding boxes at craft shows is just standard procedure. You have to get them there some way. Sorry, I'm not much help. I've been doing craft shows for twenty years and the only thing I hate more than tearing down the stand is setting up the stand. The middle part is okay.