An old fashioned analog (paper) memo pad that you carry with you can be your best investment in productivity. Sure, you can do the same thing on your smartphone, but it’s very handy to be able to flip quickly through the pages and see dozens of “To Do” or “To Buy” items in a few seconds. My father attended a Dale Carnegie course on “How to Win Friends & Influence People” when I was a teenager and came back a changed man. Much more organized, self confident and sociable. (I highly recommend the book by the same name, which has been recently updated). Dale Carnegie recommended carrying index cards in your pocket and the Memo pad is an extension on that. It is probably my favorite organization tool. I call it my “second brain”. I write down both work and home “To Do” items in it and in the back (going from back to front) I write down “To Buy” lists, which I refer to whenever I’m in or going near a store. In order to make it work, I must always carry a pen with me, which is handy in general, plus appeals to the OCD in me. The memo pad frees up my RAM brain memory space for more pressing concerns like “Who am I?” and “What’s for lunch?” Is it a bit geeky? Maybe. But it works. Try both the digital (smart phone) version and analog (memo pad) version simultaneously for a couple of weeks and see which works best for you.