1)   EasyBilling 1.7.3
Create professional sales documents, Quotations, Invoices, Receipts and Delivery Note. Allows you to generate the document in PDF file and print freely. You can also put your company logo and other company info into the documents.
Invoice, Quotation, sales document, receipt, print invoice, invoicing software, billing,

 2)   Receipt Generator 1.01
Create professional looking receipts for home or business
receipt, money, cash, business,

 3)   Proposal-Invoice 2.2.06
An easy to use, affordable paperwork solution for small companies and consultants. Easily create great-looking proposals, invoices, acknowledgements, and receipts for your customers and clients.
invoice, receipt, quote, sales software, consulting, POS, order forms,

 4)   HaveTheyReadItYet 1.0.102
A freeware privacy-protection and receipt-notification tool that inserts user-creatable/selectable images called "stamps" into outgoing e-mail messages. Both senders and receivers can click on the stamps to see when and where the message was read.
email, e-mail, stamps, receipt, tracking, notification, return-receipt, Outlook, Express, privacy,

 5)   ProductiveMail 1.5
ProductiveMail lets you know in real time when your emails are received and read. Make sure that your outgoing emails were received and not blocked as spam. Did your message get thru? Don't wonder. Be sure!
email, e-mail, message, read, receipt, confirmation, notification, msgtag, tracking, follow-up,

 6)   kCharge 2.0
kCharge is a powerful Windows application that provides a fast, safe, and secure way to process incoming credit card payments on your PC. kCharge works with your existing credit card merchant account and all of the major Internet gateways.
credit cards, visa, mastercard, authorize.net, verisign, invoices, receipt, charge card, finance, credit,