Using a computer to manage your to-do list is often a better solution than using paper. Things stay neat, even if you change a current entry or delete an old one. And unlike a paper notebook, you can back up the computerised one easily. Plus, if you use a web-based online system, your entries are available from any computer you use. Or, of course, from your smartphone if you have web access.
I've recently been trying out two web-based systems which help to manage your to-do list.
TeuxDeux (which sounds like To Do if you say it in a French accent) is the simplest and least cluttered of the two. Its uncomplicated week-based layout makes it easy to enter items and arrange them. There are also some additional features built in, such as automatically carrying forward items that haven't been completed.
You can sign up at www.teuxdeux.com
The other system is Toodledo, which is at www.toodledo.com. It's a more complex system, with more features, and also includes a built-in online notebook too. Unlike TeuxDeux, which is free, Toodledo charges an annual subscription, but a basic account is free and this should suffice for most people.