As far as tricks and tips. Minimum amount of everything! Also, on your hard plastic in your truck dont use armor all, it will leave everything a greasy mess. I personally use meguairs natural shine, it gives it a factor finish that doesn't collect dust like AA.
Also, dont use the soap at the car wash, most of the time its not PH balanced and will effect your clear coat eventually.
When washing your truck keep a separate sponge for your rims and check your sponge every half panel for Dirt that may scratch your paint.
If you want a silk smooth paint the. Use a clay bar or nanoskin every 6 months. This will help with water spots and keep your paint looking new. Make sure you follow up with a good wax.
Never wash your micro fiber cloths with other clothes. Wash separately and use vinegar for the fabric softener, then hang dry.