Favorite RV Accessories?

What are your favorite RV accessories? I know my father-in-law loves his "Flush King" gray/black holding tank valve. What's your favorite?  

does anyone have any experence with a BOLY generator .  wedo a lot of primitive camping and a generator would be nice. cant afford the *** models. any advice would be appreacited  

I bought an electric start with remote start from COSTCO for around $400.  It is a 3500W max 3000 continuous.  Has a claimed db rating of 67 at 25 feet I think.  I have run it for a test and it will carry the AC and frig, they say to turn the AC off to use the microwave (?).  It not like a little honda, but i think I can fabricate a exhaust extension to quiet it down.  In the army we had some noisey 1.5 and 3k gens.  Used to run flex pipe to some sandbags to quiet them down, but they had a lot of mechanical noise, the champion is primarily from the exhaust and if you are boonie camping that may not be an issue.  BTW this has an RV plug and filter built in so it may look like a contractor model it is set up for an RV.

I am  mounting it to an extension to the rear bumper of the TT so it can be run while moving if need be.  Saw this set up in Mississippi when a guy pulled in on a hot humid day and had the TT already cooled down!

If you want to have just lights harbor freight has a small 1K for around $100, I have one havent tried it out yet.  

thanks for the reply.the place of our membership limits the noise level to 60db