Cowashing is using conditioner to wash the hair instead of shampoo. Some people find cowashing helps ease hair dryness and reduce breakage. However, it can also lead to oily residue buildup.

With the summer heat rolling in, finding ways to stay cool is everything. An air conditioner — particularly a unit from one of the most reliable A/C brands out there — can certainly get the job done.

You probably wash your hair just like everyone else: first shampoo, then conditioner. This, of course, is completely normal and traditionally correct. After all, we all know that conditioner ...