For all those joggers (that go 'round, and 'round and 'round)...
There's a great website, that lets you map your own running routes. Started using this site last year, but got lazy. Although now the weather seems to be improving (a bit), I plan to use it again.
It's really handy, as it lets you properly plot and measure your favourite routes. Rather than just guess them, which I used to do! However, it also means that rather than going home kidding yourself that you've done 6 miles, this will tell you the hard truth... (i.e that you've actually only done half that!).