1) Never apply fluids on a wrap install.
2) Heat is your friend. (Torch is my suggestion, but a heat gun also works. Heat it up to 180 degrees around the contour areas.) Do not pull hard on the vinyl once you heat it up. In other words do no heat and try to lift before it is cooled, if you have a problem.
3) Make sure you layout the panels on the vehicle before you start your install. This will help ensure that everything is lined up.
4) Go to a local dealership and see if they have any car doors, fenders, etc that you can have. You would be surprised by the number of dealerships willing to give you some great test panels.
5) Practice makes perfect... You should really practice quite a bit before you attempt the wrap.
6) If you get a crease, try your finger to rub it out first. If that does not work, pull up and heat it. When you heat the vinyl it will return to its normal position. Just use caution when using heat, too much heat will stretch or burn your vinyl.
7) Buy a Rolle Pro and plenty of standard, 6" & 12 felt squeegees.
8) Watch plenty of videos on wraps. They are easy to find and give good pointers.
9) Buy the vehicle template, it will help with the design. Give yourself about 3-6" on top, bottom and sides for bleed.
...not really much more to say. It all depends on the vinyl, laminate and vehicle type.
Good luck...
My first wrap project was a sprinter van. Let's just say I lost a lot of hair... My second was a 53' Race Trailer with plenty of obstacles in the way...lol. My dream wrap projects are Race Trailers with no rivets!!! Its a shame that more racers do not buy them without the rivets.