Canada stopped producing the one cent coin in 2012. Within a year they were removed from circulation. They are still legal tender, but no one uses them. Canada is the country where debit cards are an almost universal way to pay for everything. About 99 percent of our retail stores, gas stations, cafe and the like have a "point of sale " machine that we use to pay for everything. I personally don't carry cash any more. My debit card has the "touch and pay " option, where I simply touch the point of sale machine with my debit card, and the payment is completed.
Canada did away with the one and two dollar currency bills about 30 years ago, and replace them with one and two dollar coins, which are much more durable than the paper bills. Our current five, ten, twenty, fifty, and one hundred dollar bills are made of polymer plastic, which is tougher and much more difficult to reproduce by criminals. All of our currency bills are a different bright colour, with distinctive designs and large numerals.
The Royal Canadian Mint produces coins and polymer bills for over 70 foreign nations under contract. They also produce 24 karat pure gold one ounce coins for collectors, and one gram 24 karat wafers for investment buyers like me. The world price for 24 karat gold is currently at a record high price per ounce, because of the political unrest in the USA. JIM.
seems like a very efficient way.