CVS: F.R.E.E Extra Or Eclipse Gum! WOOHOO! This week head on over to CVS Pharmacy this week (week of 5/20) to score a FREE pack of Eclipse or Extra gum with this easy deal! How To Score This Deal: Purchase one (1) single pack of Extra or Eclipse gum, 99¢ Get back 99¢ ExtraBucks Final Price: FREE after ExtraBucks! What is an ExtraBuck? These are the incentives that CVS offers to get you to shop. They are basically like cash and can be used towards your purchases.