The notes are almost exactly the same size. Within a few millimetres of each other.
You're used to your coins being for, all intents and purposes, worthless. That is why you hoard them. (This is precisely why the penny needs to go; prior to this year's abolition of the Canadian penny I knew people who would throw them out when they got them in change. They were so worthless these people considered them a nuisance!)$1-2 coins are still a bad idea as far as my experiences goes. Determining how much money you have on you a lot less intuitive. While once I lived in the US and anything under a dollar was $.XX and eligible to be retired to the likes of a giant coin vat/piggybank/what-have-you,
Why would you want a buck or two buried in your wallet? That's the beauty of the coins, they keep OUT of your wallet and ready to spend! That's the whole point of physical money.loonies and toonies are giant coins that won't fit in your wallet and yet almost every single cash purchase results in getting them back in change... there's simply no paper $1 way around it--so you end up with more of your currency collecting in your cupholders than in your wallet.
5 x $1 bills = $5 billI think it's mathematically unreasonable to set the "coin plateu" to $2, of all things... while the most $1 bills one might accrue without being able to exchange for a larger currency is 4, coins you would need far more so to say paper money stops at $1 works well in practice.
5 x $1 coins = $5 bill
(1 x $1 coin) + (2 x $2 coins) = $5 bill
... The math works out pretty well to me. I could exchange three coins for a $5 instead of five one dollar bills. (I know there is such a thing as a US$2 bill, but I've never seen one.)