A hand(wash)y thing

So I was shopping for yarn today. Not that I can afford it, but I can just look, can't I? At any rate, each yarn was followed by all those incomprehensible washing and care directions. Okay, the basin of water with the hand it make sense, but those other ones? I realized that while I had no clue what those meant, surely Google had the answer. I found this link very helpful. The triangle is not an iron, as I had suspected, but bleach. Now you know.