I use Autoglym foaming car wash. Last week i used a Clay bar followed by Autoglym super resin polish some carnuba wax then the meguiars fast finish which is soooo easy to apply and wipe off . This is the result .
I buy wash and wax that is on special. Best use some sort of car wash as it is normally PH neutral. The above mentions are good. Just make sure you wax every 4 months if you use a thick wax or every month if you use a lazy wax. I like to thick wax every 5 or 6 months and lazy wax a couple of times in between. I use Bowdens but there are a few good options out there