Things we use in and on the RV

There are a number of black tank treatments out there, this is what we use and have had good success with it.  We haven’t noticed any odors coming out of the toilet.  We dissolve it a gallon of warm water in our bathroom trash can and pour it in.  We do this when we arrive at a new site.
This is something no RVer should be without.  Whether you buy 1 tube or 4 tubes you should always have one of these in your tool bag.
Another have to have is Eternabond Tape for any tears or damage to your rubber roof. 
Installing these lights was one of the best improvements we’ve made.  We installed this light strip under our kitchen cabinets above the counter top for addition light and extended them into the pantry for additional light in there as well.  While preparing meals you would be standing in your own light and just couldn’t see. This link will take you to a more detailed look.  ??????????????????
If you have read some of my stuff you will know that I’m into power efficiency.  I bought this fan because it will operate off of 12 volts.  Simple little thing to keep a breeze going while watching TV, playing a game or sleeping.  Plug it into a USB connector that is plugged into a 12 volt connection, we use to call the cigarettes lighters.  This may seem redundant but USB connectors are changing constantly and well that 12 volt supply is always the same.  This way you can update your charging setup with buying and rewiring a new plug.   We got the blue one because it was 4 bucks less than the black one.
I installed these 12 volt SAE plugs in various location so I could connect 12 appliances to them using the wires below.  Obviously they are connected to a 12 volt power supply which is connected the batteries.
 
This little speaker has been dynamite.  For the price this little thing sounds great and the bluetooth range is pretty darn good.  I use it at home as well as when we are traveling.  
This item is more of a general item we have found extremely handy.  These magnetic charging cables keep you from having to plug the USB or other connector into the phone or other devices and risk damaging to connecton over time.