Kmart – Free Glade Plugin Warmer The links in the post below may be affiliate links. Read the Full DisclosureJanuary 8, 2015 by Kim Julian This week at Kmart you can get Glade Plugin Warmers for free! Here’s how: Glade Plugin Warmer $0.99 Use: $1.00 off any Glade product Final price: FREE For more bargains this week visit the Kmart Deals Page.