Any home remedies for very dry hair besides visiting the salons?

I've heard that apple cider vinegar would help. Have not tried it myself though. Can simply apply it onto hair and scalp, leave on for 5-10mins and rinse off. Or can also dilute it with equal parts of warm water, and apply it after shampooing (like a leave-in conditioner). Personally, I use store-bought hair treatment once in a while (especially after I go swimming) to manage dry hair.