I have the exact same camper and we love it. Welcome!
When you take a shower, turn the shower head off when not in use. Lather up then turn back on the water and rinse. I have a tote http://www.amazon.com/Tote-N-Stor-25...s=rv+tote+tank
that I use to clean out the grey water. It fits perfectly under the passenger side dinette seat. It has saved my bacon many times. That combined with a 10 aquatainer to refill the fresh water and you are well on your way to improving the only downsides to the camper. There is one thing about the waste tote that I bought. As you know, the camper site pretty low to the ground, so use this, you almost have to put it down the hill from your location. Aside from the one I have fitting perfect under the dinette seat, if look at a low profile one like this one http://www.amazon.com/Barker-Manufac...nk+low+profile
. This one would work better, but would not store as well.
By the way, your set up is almost the same as mine. Same Zero gravity chairs, same camper, nearly the same grill!
...she started talking about how I never listened to her or somethin, I donno, I wasn't really paying attention...