I've started offering free shipping within the US for most of my listings. If you win multiple auctions, one or more of which has a shipping fee, please wait to pay until you've received an invoice since I still combine shipping. I use First Class Mail for packages under 16 ounces. If you desire tracking, let me know before you pay since for the smaller weights I will have to buy tracking at $1.50/package. It is automatically included with larger packages.