The safest and most anonymous would be going offline I guess. Working with USB drives and CDs.
Hahaha that one gave me a laugh! Yes, you are indeed right.
So far, I am using VPN, multiple of them (few VPN Companies have pinged me for reviewing their software on my blog, and in turn, now I enjoy their service :p ), I mostly use when I am torrenting (Yeah, fan of TV Shows and Movies).