While traveling on the road where do you get water to fill your storage tank. We've been on the road staying at Wal-Mart's the hardest thing for us is getting water.
This is why we love and patronize Cabela's. Most all have RV parking, dumps and potable water. Frequently, the staff does not know where the potable water is, but I usually find it near the outside boat stuff place.
Picking a cheap FHU site for one night a week works too and DW gets to take a long hot shower.