this is what I would suggest. Invest in 1 day on zainoing the car with 2-3 coats. Then each time after the first initial day of zainoing that you want to keep your car clean. This is what you do. You wash the car, don't dry it with cloth or anything. Take a nice drive for fun or to work and when you finish the drive. There will be only some water remaining on the end of the car. Dry that portion and you'll have a clean car in a short amount of time. Plus, it reduces the chance of swirlmarks.

 

If it takes 5 hours to wash, you are doing something wrong haha... Wash rims/tires first and then car... Followed by drying... The main thing is to keep it clean so u avoid washing it often... This is accomplished by having a good layer of polish and wax on the car... That way all you do is use detailing spray to remove dust etc etd and keep it looking clean... Then u only have to wash it when it is exteremly dirty, or whatever your wash intervals are(once a week, bi weekly etc etc)...

And as for Buddha's comment about "drive drying" be wary... When driving the car will pick up dust, debris, particles and then when you dry the car they will get caught in your towel and cause scratches and swirlmarks...