There are no 1 dollar bill in Canada . They're coins. I think they used to exist, though. Also $2 bills got replaced by coins in 1996 and $0.01 coins will stop existing this Fall. $1000 bills stopped existing a few years ago I think. I think it's only the $50 and $100 bills that are plastic, because they have yet to replace the others. I wouldn't be surprised if new $5, 10 and 20 bills arrived in the future.

I always thought it was the $20 that got changed first, since they're the most common ones. And yeah it's annoying how all you can withdraw at an ATM are $20 bills, especially when you're short on cash then need to buy like $3.01 of stuff.

Yeah true. They tend to not like that much, though, because convenience stores rarely keep a lot of money, for safety reasons. In fact where I live, almost every convenience store even refuse $100 or even $50 bills.

I think we can only withdraw if we buy something, but my place lets you change a $20 bill for coins and $5/10 bills most times, even without buying. You can even do the opposite: Bringing $60 of $0.01/0.05/0.10/0.25/1.00/2.00 coins or so and get bills instead, but for that you have to use the Coinstar machine near the exit, which keeps 10% of your money as a fee.