With Evernote, there is no need to use notebooks, napkins or the palm of your hand to document your next great idea.

Evernote safely stores written notes, to-do lists and even that catchy song you've been meaning to download. The free app keeps track of whatever text, images and sounds you input into it. Evernote is also great for clipping web pages and scanning business cards and receipts.

Once your notes are entered into the app, they can be accessed from multiple devices with a free Evernote.com account. So you can furiously type away notes on your Android tablet, and read them later on your PC or smartphone.

Power users seeking additional storage and services can tap into a “Premium” account for $5 per month or $45 per year.

Yet another thing to take note of with this must-have application.