invoicing system
 Lead One  
 School Master  
 Check-it-out  
 Crash Log  
 Early Intervention  
 IFSP  
 Legal Eagle  

 this software is used by a computer dealer to quote prices from a price book of over 30,000 products and then, with a click, turn that quote into an invoice.

this software also keeps client histories on the contact page for quick reference. with past due alerts and average number of days to pay, a company can separate customers with good payment history from those with bad.