I COMBINE SHIPPING within a 7-day window, so if you are buying other items (both with shipping and free shipping), please wait until you are done shopping to pay. This way, I can mail all of your purchases in just one package. You can request a total from me at the end and I will send you a revised invoice that reflects the combined shipping discount. Payment must be made within 7 days. I ship within 3 business days of receiving payment. Thank you!