Don't forget step -1 Get yourself a few trusted anti-virus and anti-malware scanners and scan your PC.
You don't want some douchebag eavesdropping on you.
Great advice. I have AVG AntiVirus FREE -- is that ok? It says everything -- Computer, Web, Identity, and Email -- are "Protected." Firewall is greyed and it says "Upgrade to Activate".
I ran a full scan just now and it came back totally clean