Electronic cigarettes. Though based on their size (a larger battery and larger cartomizer) they could be seen as e-cigars. No burning of any material so there is no particulate matter, no smoke particles, no ash, no tar, and none of the thousands of chemicals (harmful, harmless and unverified) that are contained in the smoke from burning a substance. Instead it is a vapor of vegetable glycerin and/or propylene glycol which are classified as GRAS (generally recognized as safe) and are used/ingested by millions daily (in anything from medical inhalers to toothpaste and foodstuffs). Flavor and controlled dosage nicotine are the only variables and additives. Some of the flavors are pretty amazing. [quote]but it seems like a very therapeutic habit. [/quote] I would disagree with you there. It is a habit, it is a personal choice, and as an adult, I can make that choice. As to therapeutic value? I would say that [google]nicotine[/google] is a substance that a mature person should evaluate for themselves (plenty of literature and research out there). For myself? Eliminating the known carcinogens in cigarette/cigar smoke and manually controlling (and reducing over time) my nicotine consumption? That is/was my personal and best choice for me. It allowed me to give up cigars (though I still do treat myself on occasion) and my wife to give up traditional tobacco cigarettes. The therapeutic effects of nicotine are debatable. It has an effect on the human body and brain, whether those effects are therapeutic? I would not project my determination onto others or tell them that their personal decisions were either right or wrong.