Weirdly, A Reverse To-Do List Makes A Lot of Sense

It's fun to check things off of a to-do list, but often what's more important is remembering when you last did something. Is it time to change the water filter? Get a new toothbrush? Go to the doctor? If you had something in your calendar the last time you did it, it's fairly easy to check how long its been, but if… »10/13/13 11:28am10/13/13 11:28am