wow, how did I miss this thread? The stories! <3
For me, gamechanger one was Innokin VV v3 with Kanger Mini Protanks. The mini protanks were a big step up from CE4s, but demanded a good bit of fiddling. I still love the VV v3s, but don't have any good teeny toppers for them. During that period, my first box mod was the MVP.
Number two gamechanger was the eleaf iStick 20w with Nautilus Mini. Then came a couple of Provari Minis when I was finally able to get them here, and then various box mods with external batteries. The Nautilus Mini was my first super reliable, no-fuss, easy-peasey, always-works, tastes-great tank. And we are still using the iStick 20s!
Gamechanger three was the Kayfun Mini 3. Wotta jewel! I had used some earlier Kayfuns, but the Mini 3 was/is the RTA for me. Love.
Gamechanger four was the Ego One tanks with CLR coils, thanks to Katdarling. My only regret is not realizing that Greek customs was going to go full out #*!&ing crazy, and I wish I had ordered a lot more coils. They cost 3-4 Euros EACH here. smh.
ECF was definitely a gamechanger. I didn't feel like DIY was exactly a gamechanger when I started, I just thought it was fun ... but it did turn out to be a gamesaver when TPD came to town, and I was already making all my own juice and had stockpiled nicotine. If it hadn't been for ECF, I wouldn't have been alerted to do that.
Thank you all for everything through the years!