M.J.
I'm still getting the hang of doing my daughters' hair & she's 5 years old! Yes, you can only wash it once a week & do not use tearless shampoo, it is really really drying which is the opposite of what you're trying to accomplish. I like the baby love products a lot, you can get them right at wal-mart & they're very inexpensive. I wash her hair once a week, put a ton of conditioner in it & then a spray-on leave-in conditioner. After that I go through her scalp while I'm combing it out & apply a more intensive grease to comb through. I've found that pulling it straight while I blow it dry & then hitting it with a staightening iron (you'll need a ceramic one, that way the hair doesn't stick to it) it will stay straight & waaaaaayyyyy more manageable for as long as it stays dry. This is the best time of year, not humid anymore & not a ton of rain. Then you can style it any way you want. Good luck!