Internet Archive just uploaded a whole bunch of early-90s Windows games to their site, and anyone can play them (even if you have a Mac—the games take place in their browser). It's a fun way to waste time on a Friday instead of panicking about how you still haven't made plans for Valentine's Day.
Just in time for Election '16, there's Election '92, a game in which you try to influence the 1992 Presidential match-up between Bill Clinton, George H.W. Bush, and Ross Perot by hitting the candidates in the face with cream pies:
There's GemStorm, a weird combination of Bejeweled and Tetris:
And, of course, there's SkiFree, a game which, if you're of a certain age, you definitely remember:
There are dozens more, so your Friday plans should be settled for the foreseeable future.