Losing metal water bottles

If you want to score a really nice metal water bottle, and you're not afraid of EnviroMom cooties (hey, it's nothing a dishwasher cycle won't cure), all you need to do is hang around me for a while. And I'm bound to lose one. Then all you have to do is subscribe to the "finders keepers; losers weepers" motto, and you are set. I promise you, I'll be weeping. In less than a year, I've managed to lose one adult size Sigg, and one adult size Kleen Kanteen. What in the heck is wrong with me? I swear, I managed to hang onto every BPA-leaching plastic bottle that ever came into my possession for years on end!!

But I know it's not just me. I was at our school Green Team meeting a few weeks ago, and one of the teachers was saying he'd lost his as well. He even wrote his name on it with a Sharpie. But that might explain it. Being a popular teacher, an enterprising student might be able to fetch more selling a teacher's water bottle on eBay if it was autographed. Alas, alack. I never think to put my name on it. Or my phone number. I did finally put a phone number tag on my set of car keys after I lost those the last time. Those keyless remote things are darned expensive to replace!

I'm thinking I'd better change my ways. Get my metal water bottle engraved from a jeweler's shop? Get a set of dog tags for it? How do you label your water bottle, and more to the point, how do you not lose it???