OP, does it have to be in one of the parks? We like to visit other resorts while we are there for some down time - wandering around the Poly or Grand Floridian after getting there by monorail, going to AKL, etc.
At the parks we get an ice coffee (or a tea slushie in China) and walk around until we are done, chatting and looking at the details of the architecture. Love the PP's idea of listening to the background music and finding where it changes
I know the OP said no tours, but the Behind the Seeds one is pretty cheap for WDW and fun.
At the parks we get an ice coffee (or a tea slushie in China) and walk around until we are done, chatting and looking at the details of the architecture. Love the PP's idea of listening to the background music and finding where it changes

I know the OP said no tours, but the Behind the Seeds one is pretty cheap for WDW and fun.