In addition to the great advice already mentioned you might extend the life of your trailer bearings with a set of “bearing savers”. I have used them with great success with rental trailers where I worked. They are inexpensive and easy to install. The only problem might be finding the proper size if your “inexpensive” trailer has an oddball size. http://www.amazon.com/Reese-Towpower-74176-Bearing-Protector/dp/B000CPAF8A