Another little tip is to lightly mist the car with a quick detailer before using the drying towel. Should aid drying and get rid of those aweful water spots.
There are a good few links to read through and absorb.
If you can get a hold of Autosmart aqua rinse its good as a drying aid cuts down drying times and helps with water spots
^^^+1 As mentioned a drying towel is just the tool for the job.I use this one and find it's stop onhttp://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_199187_langId_-1_categoryId_165609Hope that helpsAndy