I was an Open Office user for several years, but have recently switched to Google's cloud solution "Google Docs/Drive". Lots of free online storage, security of the files that is better than most financial institutions, and full portability of all documents between all open source (Open Office) and purchased (Word) suites. Additionally you can access/create/edit documents on multiple platforms - windows, iPad, Android, etc. seamlessly. Even on your mobile phone if you want to just look at one of them or do some light editing.
They have made some vast improvements over the past 18-24 months and it is all, of course, completely free.
http://www.google.com/about/products/
