Once upon a time I decided it was time to start keeping track of the changes I was doing in my blogs and websites, specially my landing page at enekoalonso.com. So I started using SVN, which is available in my current hosting: Dreamhost.
Here is my current setup for blogs and websites:
enekoalonso.com
https://enekoalonso.com/prvsvn/enekoalonso.com/trunk (private)
enekoalonso.com/main
https://enekoalonso.com/prvsvn/enekoalonso.com-main/trunk (private)
enekoalonso.com/research
https://enekoalonso.com/svn/research (public)
dev.enekoalonso.com
Checked out directly from WordPress SVN (currently running 3.0alpha)
I have different repositories, public and privates with https access, and I store my blogs, my sites and also other projects I work on, including iPhone applications, etc. Having SVN is a little overhead, but the benefits are great, specially if you use tags to keep track of versions, etc.