I was cone-free for several years and started adding them back into my routine about a year ago because I found a handful of products that I loved that happened to contain silicone. I generally try to limit my use to no more than 2 or 3 times a week (I cleanse my hair daily), but that's not based on anything. I think the key is to remember everything that CG teaches about maintaining a good moisture-protein balance, which is something you can do with or without using cones.

Modified CG since 11/5/11
CLEANSE: CJ Daily Fix, DevaCare No-Poo, CHS Treatment Shampoo
RO: SS Caitlin's Conditioner, CJ Beauticurls Strengthening
LI: SS Repairing Protein Treatment, CHS Silk Leave-In
STYLE: Re:Coil, Curl Keeper, Deva Ultra Defining Gel, Curls Rock Amplifier,Sweet Curls Elixirs Okra Gel and Hard Hold Gel, SS Curl Enhancing Jelly and Firm Hold Gel