A couple days ago I bought SoftSheen-Carson Optimum Oil Therapy. It's a combo of coconut, olive, avocado, and jojoba oils. I actually found it in ShopRite near the conditioners. You only need a real small amount (I use half a dime size) to moisturize your hair without it looking greasy. Also, it has a little bit of a scent, so if you use too much you may not wanna be around yourself.
I like it and think it does a good job of moisturizing while easily washes out with cool water.
My Hair History Pictures
What is your hair texture (fine, medium, coarse)? I ask because my fine hair can look greasier easily. I don't live in the USA (Where I assume you live) but I think things like this are available in the UK and want to try one.
My hair is real fine and brittle. It breaks easily but I hadn't been moisturizing it. Now I am...hopefully it'll grow well past my shoulders.
Marty
My Hair History Pictures