This is the magic number.
500 are the number of words a day I should be devoting to finishing my novel, so it will no longer suffer the indignity of remaining a work in progress.
500 are the number of calories I have to cut from my diet in order to lose this weight that's keeping me fettered to the ground as I run.
500 is a nice amount to cut from my budget each month for some added wiggle-room.
500 is the number of hours I'd like to find this year just for myself to day dream, sleep in an hour or two, wiggle my toes in the water... just remember what it's like to be carefree.