Cette is used with feminine singular nouns. Ces is used with plural nouns, both masculine and feminine. Ce garçon est très intelligent. – This/That boy is very intelligent. Cet homme est très beau. – ...

I may have to ruffle some feathers with this one. I believe that we are all allowed to choose one thing about which we can be unbearably pedantic. For some maybe, it is dishwashing methods or the ...