Arithmetic, Population and Energy (Youtube). That was a surprisingly interesting talk ranging from "what does 7% growth actually mean" to "there's too many people".     #>

Powercore EDM cutter adapter. Use your 3d printer to cut flat metal! That is pretty impressive and the cost isn't bad either.     #>

Movie Spoilers. Many times I know I've seen a movie but I'll be darned if I know where it ended (this is especially relevant when coming into a sequel that assumes you are all caught up as if you just watched the first one yesterday...)     #>

Hail Protector, that is quite a thing. Useful in Colorado if you have to keep your car outside...     #>