The United States Postal Service (USPS) has increased prices for shipping this year, so I have just adjusted the cart (orders placed before today, I just covered the slight increases. Any orders placed after today, if the cart undercharges I will contact for more postage). I may be tweaking the cart a few times over the next several days (as I process orders with these changes) and adjusting the cart as needed. Still working on a few shipping refunds.