It occurred to me today that there's not actually that much discussion in the industry as to the frequency with which people make changes in their AdWords campaigns. That said, I've poached three questions from a circa 2003 WebmasterWorld post that's now closed, and hope you'll take time to answer below.
I. Bidding
How often do you change bids for each keyword?
Daily
Every other day
Weekly
Bi-weekly
Monthly
Quarterly
Other:please specify:
II. Optimization
How often do you optimize?
Daily
Every other day
Weekly
Bi-Weekly
Monthly
Quarterly
Other:please specify:
III. Creatives
How often do you change the creatives for keywords?
Daily
Every Other Day
Weekly
Bi-weekly
Monthly
Quarterly
Other:please specify: