With the introduction of many tablets, your laptop/Mac can be replaced with careful consideration.

Solution #1

Documents and photos can be accessible from any device from anywhere via the cloud. All you need is an app. Dropbox allows you to access and share your files. Evernote helps you keep track of life, using notes, voice memos, photos, clips of web pages and more. Google Docs is for anyone who works with documents, spreadsheets, PDFs, and presentations. All support both iOS and Android. Dropbox (Android)
Dropbox (iOS)
Evernote (Android)
Evernote (iOS)
Google Docs (Android)

Solution #2

If Microsoft Office is a must, you can use Quickoffice Pro HD, which has been optimized for a tablet interface. On iOS, you can also use the iWork suite. Quickoffice Pro HD (Android)
Quickoffice Pro HD (iOS)
iWork

Solution #3

You will also need some external add-ons. First, on an iPad, you can use the HyperDrive to store data. Second, a good pair of headphones will enhance your sound experience whether it is on a tablet, laptop, or Mac. Third, a separate keyboard is also a good idea. Lastly, using a clamcase will protect your iPad. HyperDrive
Headphones
Keyboard
Clamcase