$4.39 to mail up to 4 oz. in a #000 bubble mailer with tracking and $100 insurance. You can buy a bundle of 100 #000 bubble mailers on eBay at $0.25 a piece. Print your own label on a plain piece of paper, cut it to size, and tape it to the envelope with clear packing tape. I always drop mine off in the drop box in front of the post office. Easy Peasy Lemon Squeazy!!!