This plum district email just appeared in my inbox: Take 20% off any deals today only. Why not just wait until the very end of the day, guys?  This magnetic iPhone case is $15 with $5.95 shipping but take 20% off and you’re paying $17.95 shipped (selling for $35 on Blingberry).

• Blingberry’s magnetic iPhone case allows you to stick your iPhone to a refrigerator, whiteboard, or any other metallic surface – great for multi-tasking
• Attach your iPhone to a lamp post at night, easily read recipes while in the kitchen, use your GPS in the car hands-free, talk while driving, and more
• Magnetic back also folds to double as a kickstand
• Blue, black, red, or green available