Evernote is my to do list for everything and anything! If I have to write a quick note to myself, e.g. a grocery list, an address to remember, a Christmas shoppinig list, you NAME it! I even keep my waiting list for my clients in Evernote! And it syncs beautifully and quickly with my iPad an even my Blackberry! Really reliable and available all the time! Gone are all my strips of paper list which I could never find anyway. Oh yes! Also awesome for taking notes!
Virtual blackboard! about Evernote, v6.6