Method/product for cleaning cigarette smoke off of LCDs?

Solution 1:

You can either use an equal ratio of distilled water and vinegar or isopropyl (rubbing) alcohol. Be sure to use a microfiber cloth or anything non-abrasive. As a general rule of thumb, you don't want liquid to drop/drip on the monitor as it can get inside and destroy it. Just apply a small amount to your cloth.

Solution 2:

I am not smoker, but I use some cleaning liquid for LCDs which was shipped with some microfiber cloth. I use product called "D​-Clean Premiu​m Notebo​ok Clean ​- Crysta​l Shine", but we also have something similar by Belkin (these do not contain alcohol). I think it could be also effective for the smoke particles. The set of 20 ml cleaning solution in spray with microfiber cloth costs approx. about 8 USD in my country :-)