Wargame Vault is having a four day Winter Offensive Sale.
From their announcement:
Wargame Vault Winter Offensive Sale. 20% off select titles.
December 17, 1000 Hours to December 21, 1000 Hours.
Get in on the Winter Offensive. Shop for four days and get 20% off the regularly priced products from dozens of our publishers. Hundreds of great downloads on sale, but only for a limited time. Prepare to move out, and join in the Winter Offensive. Happy Holidays from Wargame Vault.