For years of RVing I've wondered why the first thing I see people do when they pull into a site with an RV is to get out their sewer hoses! Why? They don't look nice and the more they are exposed to the sun the sooner they will become brittle and split open doing an unpleasant number on your best shoes!
What I have done for years is to only level up and plug in our electrical plug when we setup. It takes five minutes tops. Then I get right to the good stuff! (Happy Hour!) When I'm ready to dump the tanks THAT'S the time I drag out the sewer hose! (Also I flush it out thoroughly before I put it away)
Also for those who like to connect up to the outside water supply, I would suggest that you consider that your rig probably has plastic pipes that are happier with the lower pressure supplied by most on board water pumps than the higher commercial water pressure at the on site water tap. (I only use the outside water supply to refill my water tank and I have never had an on board water leak as most of our friends have!) This also simplifies the setup procedure.
Reference: Article from Everything-About-RVing.com