I am a big fan of a notebook/notepad. I have one from Thirty-one called a fold-n-go. It has a zipper pouch to keep receipts, a notepad, and a multipurpose pocket. I love being able to keep my grocery list and coupons, to-do list, and receipts all in one place. Plus, if I have an idea or thought I need to jot down (because I know I will forget later), I've got it with me. It's also a great place to keep track of my prayer list. If I read/hear someone or something I need to pray for, I jot it down so that I always have the list with me. If I'm waiting for the doctor, waiting for my kiddo to get out of school, or just have a few minutes on my lunch break, I can whip out the list and pray then and there!