ShortShip Pro allows you to find the best deals on eBay by letting you sort auctions by price+shipping.
Tired of sellers charging a fortune on shipping to make their bid price seem lower? This will fix that problem for you.

Additional features include the ability to report scammers with one click, see if an item has an unmet reserve right on the item listing page and save you time and effort. Requires Firefox browser

• Invoicer Supreme 7.8.
  Creates and Prints Invoices, Statements, Packing List, Credit Memo,Charge Slip,Manual Invoices, Shipping & Mailing Labels,Sales & Tax Reports, Create Invoice Templates, Create...

• Super Invoice 1.01
  The fastest and most convenient way to print invoice

• Amazon Filler Item Checker Toolbar 1.0
  Amazon Filler Item checker - finds filler items on amazon to qualify for free shipping, simply enter the price that you need to qualify for free shipping and you will be presented with a list of items that will get you free shipping. The toolbar...