My biggest beef with metric is buying gas in litres... We get ripped off with price fluctuations of "only" 6 or 7 cents but that could be a 10% price increase.
Also on premium grades of fuel, 91 octane is always 10 cents more per litre than 87 octane. That works out to 38 cents more per US gallon! In the US normally the difference is 10 or 15 cents...
Also, if you measure carefully, all our building materials are made to the nearest millimetre, 4x8' sheets are actually some number in mm, same with the thickness.
Ian
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