My last trip I was there for only 4 full days and only went to the parks on 2 of the days. There is lots to do without going into the parks(although it was tough not to!).
We spent one morning playing mini-golf at Fantasia mini-golf, then spent some time at the pool, followed by a few hours at DTD.
The other day we spent the morning at our hotel BWV, then went over to the Poly to rent a water sprite. We also took the monorail around to see the Christmas decorations at GF and Contemporary.
There's lots to do staying at your resort - especially if you want to spend time hanging around the pool. We also like to walk so we did walk the lake around BWV/BCV.
It was a much more relaxing trip because we didn't play park commandos the whole trip. I will always plan at least a day or more to just hang around - My DH needs the time to recharge so I've learned what makes him happy, makes me happy!