I was fortunate in that our red came with very few paint issues (fremont delivery so no trucking protective coating and no factory post delivery swirls etc.) All I had to do was clean a couple of spots and buff one spot with a fine swirl remover (by hand). That being said we brought the car home washed it and started the Gyeon Syncro ceramic and hydrophobic process. It is a non pro person application in my opinion ( I am just a once every year or two waxer).
If you are an extreme enthusiast or want the very best coating (Expel or the other wraps) then go for the added expense. If you just want to preserve the paint and not have to pay an arm and a leg or do the extreme "paint correction" and would normally wax the car, consider the ceramics as the modern equivalent but improved approach. If you have a good (good enough for you to be happy with as it stands) paint finish the ceramic from Gyeon Syncro is pretty easy to apply (do small areas as it cures in seconds literally). You do need 2 coats and I did 3 on the front. There is an hour between coats, so this is a day project. The next day one more application of the hydrophobic "Skin".
It is extremely slick and easy to wash from there on.
I found I needed 2 x 50 Ml syncro packages to do the whole car 2 times and the front half a third time. ($179 each).
This is in response to the original poster's (60+ y/o female, not high tech poster like so many of you.) as a do it yourself approach that I suspect this person could consider tackling. No machinery and very little elbow grease unlike waxing. (again if you have an acceptable paint job)
There are a couple of youtube videos you should watch by "Forensic Detailing Channel"
Ceramic Coating Shootout
Gyeon Syncro products review.
Forensic Detailing Channel
do a quick browse on gyeon Syncro for some other application hints
(Disclosure -- I have no association with any of these but have waxed my cars for many years and this is much much easier especially if the car is new)
Patrick