from GrogTag:

GrogTag’s biggest sale of the year is HERE! For 24 hours only, take 50% off your entire purchase* worth $50 or more. That means your $50 cart will drop to $25!. Sale ends at 11:59pm PST on Sunday, February 19th, so act now and act often!

EDIT: This has expired.  Check below for current GrogTag Coupons and Promos