I stopped on my own once for about 3 months - Cold turkey and just fought through it, to make life better for teh non-smoking other half. Then she and I had a massive bust up and I started again, out of spite.
Not bothered trying since, been too busy enjoying life, meeting the new one (who smokes, too), getting married, etc.
A Chinese recipe is to get a Betel nut, hollow it out and fill it with tobacco, then boil it for an hour. Whenever you feel the need to smoke, sniff the nut and you'll soon just stop.
Electronic ones appeal to me. I tried an aerosol style one as a market product test (brand name witheld for legal confidentiality reasons), but it was crap.
Best of luck, whatever you choose.