My most common advice to people considering vaping is
1. Vaping is not smoking - nicotine takes slightly longer to be absorbed and there are no eliquids that taste exactly like "insert preferred brand here" cigarettes so try non-tobacco flavors
2. Plan on cutting down on your nic levels slowly and eventually you will find yourself leaving the house with out your ecig and not panicking 2 blocks later
3. Backups for your backups - Figure out what you spent on cigarettes in a month (1 PAD @ $5 = $150) a spare ego battery and clearo is under $40 at even the most expensive site or store
4. Don't be ashamed of vaping and don't let uneducated people try to scare you away from vaping (there is a large amount of negative press with vaping happening right now) - BUT do not blatantly vape in areas in which smoking is not allowed (most bars in my area will allow vaping if you ask nicely (smoking is not allowed in any indoor business)) - if they say no, don't argue, just take your business somewhere else or go to the smoking area and try to convert the smokers out there to vaping.
5. If you have any questions, ASK a group of vapers (ie: here in the ECF) and organize the answers you get and go with the common consensus (with a grain of salt - RBA's, RDA's, Mechanicals are all advanced devices and should only be used after you understand all the battery safety requirements - subohm cloud chasing should only be done in the privacy of your own home, cloud chasing will scare uneducated nonvapers out in public)
sorry I went over your 1 answer request