"...For the purpose of this post, we're breaking down online security into four essential parts: passwords, browsers, at-home Wi-Fi and networking, and browsing on public Wi-Fi. Within those categories we'll give you a checklist of everything you should do, from the bare minimum to the tin-foil-hat best."
Read checklist here
http://lifehacker.com/5938980/how-secure-are-you-online-the-checklist
