Personally I like to give bath in the bathtub with warm water.
If I am in the summer I first use bug shampoo, then normal shampoo, and finally soft conditioner. In winter I only use normal shampoo and soft conditioner.
The most important is to pass a lot of water to clean all shampoo and conditioner traces.
2º Step - Drying
After drying well with the towel dry well with drier. The Aussies are dry brushing horizontally back and the Goldens are dry brushing vertically down.
There are some products on the market that give brightness / smell to the hair. I apply this before to be well dried and then I finish drying.