Common sense in browsing.
Firefox is solidified by AdBlock Plus, ABP Popup Addon, and Flashblock.
SpyBot has Firefox and the Hosts file immunized.
ZoneAlarm Free for firewall usage.
Malwarebytes if I need to see if something got in that SpyBot couldn't detect in its scans.
RKUnhooker and ComboFix reserved for emergencies.
CCleaner and Defraggler for general maintenance. Manual clearing out of the Temp cache regularly.
If for whatever reason I feel the need to run an AV scan, I do so using Avast (or possibly Clam AV now) from my Linux partition.




