Vegas is one of the last strongholds of smokers

Smokers are everywhere. You can't escape them. It smells like smoke in the casinos, hotel rooms (the "non-smoking" rooms are only a half-notch better), restaurants, bars and even unlikely places such as the shower (the warm water reactivates the smell stored in your hair).

You're going to reek of cigarettes. Can't be helped.

Do this

Keep an outfit wrapped in a plastic bag until just before you leave your hotel, and only wear it for the ride home. You'll smell and feel a lot better.