Do you smoke cigarettes and live in the Atlanta area? Adults 21 to 65 who currently smoke are invited to an in-person clinical research study about cigarette and e-cigarette use, starting with a screening and enrollment visit at a research site in Atlanta. Qualified participants receive $75 for completing the screening visit, and up to $300 in total for completing the full study. If you are interested in participating, please sign up and take the survey to see if you qualify!