It's not pleasant, but if you gradually wash your hair less and less frequently the oils in your hair eventually find an equilibrium.
At least this is how it's turned out for me. I generally only wash my hair about once a week or less. At first it was crazy oily and frustrating, but gradually the amount of oil my head produced lessened.
Same...I used to shampoo my hair EVERY time I showered (everyday) and was confused why it was always so dry and frizzy. Now I just rinse it daily when I'm in the shower and shampoo it once every 5 days or so and my hair is much less frizzy.
At least this is how it's turned out for me. I generally only wash my hair about once a week or less. At first it was crazy oily and frustrating, but gradually the amount of oil my head produced lessened.