Lol @ the tic tac carto holder. Getting them out looks tough though.
To the OP: It seems that with your current equipment that an EGO Twist is your best option. Altsmoke has them on sale right now. A 1000mah battery should easily last you all day, if not 24 straight hours. They would be a little longer than the EGO you now have (if you have the higher mah version), but it would still fit in your pocket. The Apollo V-Tube is another option for the price but that is wider. There's a 30% off code floating around ECF for that right now which would bring it in the 50 dollar range which is about the price of a couple of EGO Twists.
Also, I hate to correct you, an EGO C is not a
mod it's a PV. It has not been modified. A
mod is like a 5v box - something custom made. A PV is a commercial e-cig, an APV is an advanced personal vaporizer and things like V-Tubes, Lavatubes, and Provaris fall into that category.