Lemons

I have previously vaped for a year. I used to have a passable knowledge of the topic. Unfortunately, after a thee year hiatus with no use or active engagment on the topic, I feel completely lost. I honestly cannot recall which style/model I was using. All I can recall is that it was stock, refillable, and I was purchasing it from health cabin. I have rediscovered my love of this past time recently. I have seen a few different styles/model in public recently. However, the selection and terminology has clearly expanded since I had originally taken part. I am at a loss for place to start. Unfortunately, I will be embarking on a trip in the near future and have little time to prepare. I will embark in roughly 2-3 months and be traveling through a location that is uncertain, at best, to have any form of an internet connection. I am looking for some cram material. I have looked through a selection of FAQs, but I feel that it has only manage to make my confusion worse. Any guidance or adive would be helpful.