It's been a bit overwhelming with all the information in this fantastic forum. That's why I asked for "top 5 things", but got a lot more then I asked for. I love it! LOL
My main thing is understanding how everything works, the plumbing, the tanks, connecting the TV to TT, the weight limits, driving on the freeway, etc...I spent a lot of time in this forum just searching by keywords and I also spent time on youtube. But for the most part I learned things in this forum. The response to my questions is impressive and in detail. Asked only 2 so far, but will ask more in the future, I'm sure.
For my first camping trip I picked easy drive (or at least I thought it was going to be), nice CG site with full hook ups. Enjoy your TT, you will love it!
TV: RAV4, V6 tow preped
TT: Jayco 154rbh