|So get shopping!|
The last day to order for guaranteed Christmas delivery in the United States is December 11th. All of my shops will remain open, so you can order from me on Storenvy, Amazon Handmade, DeviantArt (they have their own delivery system and dates), and CafePress (again, they have their own delivery system and dates) the whole holiday season - even Christmas day if you want! Just keep in mind that with mail volume and my own time being taken up by the holiday, orders placed after December 11th won't get out quite as fast.
If you have any questions, please don't hesitate to ask!