what is the condition of your paint? Do you park your car outside?
If you park your ride outside, putting a cover on it will reduce your detailing work by 75%. Checkout Proper Autocare.com for some good wash/detail combo packages<--click here.
What they list for their exterior "bare essentials" package is the following:
Meguiar's Gold Class Shampoo (16 oz.)
Chenille Wash Pad
Water Sprite Plus
Eimann Fabrik Hi-Intensity Cleaner (32 oz. spray)
Short Handle Tire & Wheel Brush
Lexol Vinylex (16 oz. spray)
BLACKFIRE PolyClay (2 3 oz. bars)
BLACKFIRE Clay Lubricant (16 oz. spray)
Microfiber Power Scrubber Cloth
Klasse All-In-One (16 oz.)
Microfiber Applicator Pad
Perfect Shine Buffing Cloth
Their interior "bare essentials" includes:
Eimann Fabrik Clear Vision (32 oz. spray)
Viper Glass Cleaning Cloth
Eimann Fabrik Spot Remover (32 oz. spray)
Leather & Vinyl Scrub Brush
Terry Applicator/Wipe Pad
Klasse Vinyl, Leather, Rubber & Plastic Cleaner & Protectant
Microfiber Applicator Pad.
If you don't buy their stuff, at least you can see what they put in their packages.
My advice is to keep things simple, then add things as needed.
As far as using "high concentrations" of anything, just follow the manufacturer's instructions on the products you buy and modify as necessary for your situation.
It's really not that complicated to get a great shine and keep it that way.
btw, I mix my own Quick Detailer spray.
I use 1) 16-20oz of distilled/deionized/soft water. Any of the home delivery waters will do fine. 2) a couple of drops of good car soap 3) a cap of rubbing alcohol.
Mix in a good spray bottle and use a wet Microfiber cloth to apply, dry/polish with another microfiber cloth. You can also use this to pre-spray bird droppings so they will come off with minimal rubbing during your washing.
Another tip is to fill your wash bucket with very warm water so that any contaminants that are on your car that will melt,soften or disolve will come off with little effort.
I also use Solar Polish on my ride. One application is about as thick as 3 or 4 applications of other polishs. You ride will be silky smooth and be as shiny as a mirror in the sunlight. Check it out here<---.
If you buy it, be sure to shake for several minutes before you use it.
I also use Gel-gloss from Home Depot to remove light scratches from just about everything. It a gentle abrasive (like 3000 sandpaper). I use it on glass, plastic, chrome and light colored paint. Always test a new product on an inconspicuous place first.