As much as possible 
I seem to vacation at wdw or a non-wdw dvc resort at least every 2 months. Some trips are only 5 nights, but a couple are 2 weeks long. In 2001 I had/have trips in Feb, April, May, July (2wks), Sept, Oct/Nov (2wks), Thanksgiving (just 2 nights), and Dec/Jan. Guess that's 8 - but the Thanksgiving trip is a short one.
Living 3 hours away from wdw is a big help....as is buying dvc points whenever possible!

I seem to vacation at wdw or a non-wdw dvc resort at least every 2 months. Some trips are only 5 nights, but a couple are 2 weeks long. In 2001 I had/have trips in Feb, April, May, July (2wks), Sept, Oct/Nov (2wks), Thanksgiving (just 2 nights), and Dec/Jan. Guess that's 8 - but the Thanksgiving trip is a short one.
Living 3 hours away from wdw is a big help....as is buying dvc points whenever possible!