We take one trip each year, but we stay 2-3 weeks at a time. My family gets alot of use out of our AP's by booking 2 years worth of trips just inside of 1 year. Then we start the cycle all over again the 3rd year.
The reasons this works for us is:
1. The kids are homeschooled, so we can take trips as long as our points allow during the low point seasons.
2. I am a stay-at-home Mom, so the kids and I can travel whenever. My husband does not stay the whole length of our trips due to his job, but he is able to use his AP about 3.5 weeks before it expires.
3. We save money on travel by not having to pay airfare or hotel and gas expenses to drive multiple times/year.
To get this to work I have to do some major point crunching, so we don't run out of points. There is only 335pts for us to use/year. I also sometimes HAVE to pay cash for one weekend during a trip, so there is enough points to cover the rest. We prefer to spend most of our time in a 1 bedroom, but we will use a studio if the amount points left forces us to.