There are many web sites, blogs, ebooks, and articles which try to help you become productive on your Tablet device, be it an iPad, an Android, a Kindle Fire or whatever-your-choice-is. The one that I have found very useful is from this web site:
The ebook which is available has just been updated too. Direct link to the eBook is : http://tabletproductive.com/ipad-productivity-ebook/
I highly recommend this book – it has some really good ideas in it. The blog/website is also pretty good with regular tips and updates.