Still learning, but I've been able to rewick and thoroughly clean the ego T attys to get more life outta them. Still looking for the best, most convenient set-up. Talking to retailers does no good since they just want to sell you more. Some say using VG ruins the attys faster, but cleaning them regularly and storing upside down overnight helps. I learned of these by installing carpet in an e-cig store in Phoenix. I tried online atty's and none compare to the ones I get from the store.
Keep on vapin
Keep on vapin