I left my machine on for 2 hours on Sunday just 'idling' and I think it was like 2Kb traffic that came in and 1Kb out... Using BW to measure bandwidth coming in and out and have Mcafee Firewall running... I think my machine is tighter then a virgins ass in terms of 'traffic' leaks...
AVG takes up about 4Mb a week (depending on what updates are available)
I dont use IE
The only uneccessary Bandwidth waist is spam but I have a masterplan for that.
DELETE infected email address
Unless BW meter is screwing me... but it ties in to the daily figures WBS sends me