There is a great website that is absolutely free and will help you organize your prayer life! I've been using it for a week and it's awesome. It is called Echo Prayer and you can check it our for yourself at www.echoprayer.com. I often feel overwhelmed by all the things I want to be praying for, and now I've found a great tool to help me. You make a prayer list and select times you want to me emailed reminders. The reminders are sent to your email in box - it's that simple!
It has revolutionized by prayer life and I'm thankful I found it.