For those of you with too much to remember or like to have all your notes and lists in a single place, check out Backpack. This is a case of where the name of the service fits the offering appropriately as Backpack allows you keep todo lists, notes, images, etc. all in a single place:

Backpack lets you make pages which can contain any combination of notes, to-dos, images, files, etc. You can keep these pages to yourself or share them with colleagues, co-workers, friends, or family.

Additionally, you can configure Backpack to automatically send reminders to your email address or cell phone.

While you can do all the tasks Backpack offers through various different sites, the value this service adds is being able to access it all in a single place.