We just spent 4 weeks traveling to NY state to see the leaves -- we hit the time just right. The sights were gorgeous.
Like most folks, we have been using the recommended chemicals in our toilet. This has worked well in keeping down bad smells in the TM.
Even with the best of chemicals, one problem occurs when someone uses the toilet (number 2) -- the smell can seep into the other areas. This time we took a can of UNI-FRESH, a natural air freshener. Our preference is th CINNAMON Non-aerosol. The person in the bathroom uses a few sprays of this and this provides a nice smell throughout the whole trailer. We use it sometimes even when no one uses the toilet just for the pleasant smell.
The spray is from EARTH FRIENDLY PRODUCTS and found in health food stores.
http://www.ecos.com
For a nice smell in your TM, give it a try.