I ship everything the next day or sooner. 

I can combine shipping on two standard thickness cards (no relics) with eBay Standard Envelope purchases per USPS guidelines. Easiest method is to buy both cards and I will refund you when I go to pack the items. You have to buy both at the same checkout or I won't be able to combine shipping. eBay charges the seller 30 cents every time you run your card FYI. So it really helps me out if you buy at the same check out. 

USPS Ground Advantage is just a flat rate of $5.50 with no limit on number of cards. Add items to your cart and request an invoice or buy in the same checkout and I will refund you when I pack the items.