Canadians have invented a lot of high-profile things — the Canadarm, the method for extracting insulin, IMAX projection — but what catches my attention are the small things that disappear into everyday life as though they'd always been there. These Canadian inventions are rarely sung (well, if something can be "unsung," surely it might also be "sung").
First among these is the humble egg carton. Yes, a Canadian invented the thing in which you buy and, likely, store your eggs. Joseph L. Coyle from Smithers, B.C., a newspaperman of all things, came up with a working prototype in 1911. (It said "sorry" when you got home and found an egg was broken.) Then comes Pablum that ubiquitous baby food (some of which is still bound to be in cracks and crannies in the rooms where my children learned to feed themselves), also an invention from the early part of the last century.
How about the paint roller? Yep, Canadian, the work of Norman Breakey in 1940. Or, one of my all-time favourites, the Robertson screw – the one with the square slot — invented by, well, P.L. Robertson in 1908, and to my way of thinking heads and shoulders above the slot-head or star-head competition. Or, for my final example, the garbage bag, than which nothing is humbler: the work in 1950 of Harry Wasylyk, a Winnipegger, and Larry Hansen, from Lindsay Ontario.
Have a look at Wikipedia's list of Canadian inventions, or at the list thrown up by DuckDuckGo (my new g0-to search engine) after a search for [Canadian inventions]. You might be surprised at what you'll find.