I was chain smoking whenever I was at the pc at home, took me a week of scrubbing and painting to get the yellow out of the ceiling, on many occasions I would light up and try to rest my cigarette on the ashtray just to find another one just burning itself up!
I sometimes do the same with my PV, I sit in front of the pc (I spend a lot of time on it because of work) and will chain vape like there's no tomorrow! So eventhough I promised myself I wouldn't get too involved and start diy'ing stuff just yet I gave in and "brewed" myself some 0nic pepper juice, half inspired by a post from emus (cheers man), and some 0nic strong menthol cinnamon from tinctures and infusions I had around the house (I cook when I'm nervous) and now I can just switch to those when at the pc and vape without a second thought. You can get 0nic premade as well..
Saved a bundle on room-fresheners!
I wouldn't consider 3ml's chain vaping though, I was worried a few weeks ago when I go started and asking around I found that 3-5ml's is completely normal, the math on how much of the nic you are getting compared to cigarettes seemed boring so I didn't bother checking that out, it comes down to less the math said! Overall I found myself breathing better within a week, enjoying my morning run a whole lot more and now I can't believe how much harm I was doing to myself during all those smoke-filled years..
Keep with it, it's worth it!