I drink a lot, so I always have plenty of bottles to cash in for return. Now I don’t get a hundred dollars for them, but I’m lazy and they gather up. When I kick myself in the butt to cash them in, I can make a good 40 to 60 bucks with them.
But if you don’t drink, that’s useless, unless you’re willing to spend hours per week gathering them outside, which I’ve also done.
If you’re into video games, a lot of recent consoles and games will net you a nice price in pawn shops, and even better ones in places that specialize in old or rare games, like Game Buzz. I denno if that’s uniquely Canadian, but wherever you live, there must be an equivalent.
If you have really long hair, or even just normally long hair, you can chop it off and sell it to places that use real hair to make wigs from. It has to be reasonably healthy hair though, and if it’s red, apparently, you get a good price for it. Don’t quote me.