Binder clips are up there with duct tape for the number of times they’ve been a good quick fix! Good chance to stock up and keep a few tubes on hand.

My policy has been to buy multiples of any part I replace. I’ve got a dozen tubes, a hundred nozzles, two beds, and a couple extra belts in my “spare parts” box at the moment. It helps that, often, buying multiple parts seems to drop the overall price per unit by a good bit.