Your Life, Week by Week (thank you, Tim Urban by way of Joshua Lavra)
I have a copy of my own life grid posted inside the apartment. While others have commented on its morbid nature, I find it comforting. Every one of those squares I haven't checked off is a gift of time I have yet to receive (assuming I don't die before week's end). Both of my grandmothers lived into their early 90's, so there's a decent chance I will too.
2,288 left. Better make them count, whatever that means.