i detail for my job... i have a manual i work off of though.. but when i do my own car:when i keep the same car for awhile: I start from the headliner with my air compressor to blow dust and any loose girl hairs or anything and i work my way down to the dash. Working the dust from the vents and the cup holders and getting as much stuff into the floor boards as i can also blowing under and between the seats. After blowing everything to the front and back i vac it all then take a carpet brush to loosen anything else then vac, Then some carpet shampoo misted on the floor to use my brush and towel for stains/stripping the carpets. and i use generic leather cleaner and conditioner . and i armorall all of the dash and door panels... I like to work on the outside more than the in. i normally cut any scratches with my high speed buffer and 3 m rubbing compound then i like to use the 3m finish restorer to foam pad the whole car making it very hot and smooth then i use mother carnuba wax on my orbiting waxer. Tires and windows then im done.. Its tough to work on your own car when you do it for a living ive found out.