As an aside, other than for arts & crafts, what benefits are there from hot glue? Is it a particulary strong or flexible bond? I've seen plenty of uses in arts & crafts where, quite frankly, it didn't hold up well at all.
I've never known anyone who has used hot glue for anything that I can remember, particulary around the garage or for automotive uphlstery, etc.
Not saying it's bad, just curious as to the most appropriate uses for it.
I make scale models of furniture i'm thinking about building, and hot melt glue makes it pretty easy to stick things together, decide that's ugly, or the legs need to be at a different angle, and take it apart to put it back together again. This is particular useful when I'm just noodling with a piece of cardboard and some wire, to get a shape, proportion, or angle sorted out.
I bought it originally to make a cat structure for the cats, which might be arts and craftsy. I bought the cheapest one at Menards, where we got the rest of the stuff for it -- some carpet and a sonotube. (I'm pretty sure the lumber was all scrap.) One of the perches (big sonotube, cut in half) broke, because I didn't properly reinforce the mounting pipe, but the carpet and rope are held in place with only hot glue, and the glue has held up better than the stuff it's holding in place.
I find I use it more if it's out, for little random things you need to stick together. two examples that pop to mind:
I hot glue a magnet to a carpenter's pencil, and stick it on the electrical panel in my garage. When the pencil is used up, I cut the magnet off and glue it to a new one.
I had one of the plastic ear extensions on my (otherwise metal) glasses fall off. (and amazingly, my wife found it on the sidewalk outside a busy resturant an hour later....). When we got home, I went into the shop and thought what would be the right sort of glue for this. It was clearly molded in place, it doesn't have to adjust, but it needs to be reasonably flexible, so epoxy was clearly wrong. The glue gun was out and was the obvious choice. plug it in, wait, wait some more, squirt some glue in the hold, stick the frame in. wipe up the squeeze out.