When hooked-up, I use one of those tire change ramps that I can just pull or back-up on with the good tire on one side, and change the other. When parked somewhere, I just use the jack from my Ram TV. Works perfectly. If parked in my driveway, I have a 3.5 ton floor jack that I roll out of the garage to lift the TT easily.
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter