Banana makes a great deep treatment. I just did this for the first time last night. I used organic banana baby food with honey and jojoba oil. I applied the majority of it with an application brush, so it wasn't too messy. It was easy to wash out and my hair felt great afterwards.
3B Mod CG
Medium texture/ Normal to low porosity / High density

Current Routine:

Shampoo- GTTT, GVP Paul Mitchell Tea tree Shampoo or ACV/ Baking soda (once a week)
Co wash- Trader Joes Nourish Spa
Leave in- Shea Moisture Shea Butter leave- in, Elucence

Holy grail combo Feb 2013: ISO Bouncy Creme with BRHG on top!