It’s even better when the item in question costs little more than a round of drinks — and thanks to the site’s famously low prices, finding budget-friendly useful Amazon products is quite common. So common, in fact, that when we hit the site to compile a list of the most useful products that we could find, we were surprised at all the nifty knick knacks out there. Click through to see the most clever products we could suss out — all for under $29.