What were your biggest purchase mistakes?

[Lance]

Originally Posted by christyf5

......god, where do i start. I've wasted a lot of money on useless product in this hobby...

So true! I'm one of those types that has to have the newest, biggest, bestest product on the market. And not just SW either; I do the same thing with woodworking tools. I must have every router bit known to man. If I used half of them I'd be exaggerating.