Lol, I wouldn't call it over ordering by any means.. Just stocking up for the zombie Apocalypse!
Geeze, at 2ml/day, 500ml could last you almost 2 years! I would make sure that your excess nic be stored in an amber bottle and froze until you get to it. You probably wont get too much degradation, but I couldn't guess for over a year or two, you wanna make sure!
kinda why i did order so much i want to be self sufficient if i cant get my e cig stuff cause i feel i will be the one who goes back to stinkies if they do regulate this beyond belief. Which as i am new to this and as always happens with my luck if i dont over order and get stocked up they will rofl