Is there any piece of equipment that...?

piano, exercise equipment. I find it difficult to undo and reassemble them.

carpet steam cleaner. those things are a pain in the you know where to take back and forth to places. Not only are they heavy and awkward but you have to make sure all the fluids are out of it cause if they aren't they will leak in your car, and that cleaner stuff doesn't always smell the best and the dirty water smells too....esp if whoever used it last didn't rinse it out good enuf.

Bass clarinet: it's large, heavy, and generally a bit cumbersome.

Spear: at 9ft long, it doesn't fit on trains, and official-looking people tend to ask awkward questions.

Start with guitar and violin. Bicycles aren't all that great either.