Ditto.... Just disconnect it pull it out of the trailer. I refill one of the two when it is empty. That way I always have a full tank in reserve. While the rigs have a changeover valve so that they can switchover automatically from the empty tank to the full tank, the danger in that is that if you are not paying attention, at 3am on a cold night you'll find you have no propane. I keep the valve closed on one tank until the one in use is empty, then manually switch to the full tank and pull the empty to be refilled.
When you get ready to buy gadgets, you can consider the Mopeka tank sensors. Google it and that'll give you some "boy toys" to put on your Birthday or Christmas wish list.[emoji6] I love mine!
Alan