I bought a piece of 1.5 inch stiff foam to try to fix a sag in a bed. It didn't work but having that thick piece of solid foam around has been a life saver.

Need something flat to put a laptop on? Throw it on the foam. Going to be doing something that requires you to be on your knees for a while? Get the foam!

It went from stupid purchase to something I'd gladly replace if it broke.

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[–] 8 points 3 years ago

The wheel turns out to be a pretty good invention for multiplying by pi. For example, bicycling is about pi times faster than walking, with the same amount of effort.

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