I have found e-cigarettes to be helpful.
Worse case, you can keep your nicotine addiction and get a lot less nasty stuff in the process with them.
But, if you refill the cartridges with liquid, you can control the dosage and slowly step yourself off nicotine.
I find I like the e-cigs so much I keep vaping even without nicotine. I like this brand http://www.vapor4life.com/ but there are plenty of others.
I have had mixed results with the battery-powered e-cigs.
But I’m in front of a computer most of the day and got myself one that plugs into a USB port - no charging. My wife calls it my hooka. I’m puffing on it right now and do throughout the day and occassionally at home at night when I’m checking email and FR.