mptc is a Perl script to help you work out whether you're on the cheapest mobile phone network/tariff for your phoning habits. You feed it an itemised phone bill and tariff pricing information, and it will tell you how much that bill would have cost on different tariffs. So far it only supports UK network pricing systems, but could easily be extended and applied in other countries.
Spreadsheet::WriteExcel is a Perl module which can be used to create native Excel binary files. Formatted text and numbers can be written to multiple worksheets in a workbook. Formulas and functions are also supported. It is 100% Perl and doesn't require any Windows libraries or a copy of Excel. It will also work on the majority of Unix and Macintosh platforms. Generated files are compatible with Excel 97, 2000, 2002, and 2003, and with OpenOffice and Gnumeric. An older version also supports Excel 5/95.
Finance-QuoteHist provides Finance::QuoteHist, a Perl module that provides easy fetching of historical stock quotes from a variety of sources on the Web. The bundle includes the underlying site-specific modules. Reliability is enhanced through the use of symbolic extraction provided by HTML::TableExtract along with automatic failover to alternate sites.
Finance::CompanyNames is a Perl module for finding names of companies in arbitrary English text. The module can locate names and their variants, using statistical language processing methods. It is possible to automatically locate instances of "XYZ Corp" as well as "XYZ Corp.", "XYZ Corporation", and even "XYZ". This module fulfills a common need for programmers in the financial and investment communities.
SAFE stands for Service and Administration Front End. It is a basic Web-based application that allows small companies to perform invoicing tasks, both one-off invoices and recurring services (subscriptions). Subscriptions can be entered with a price per month, per quarter, or per year. Invoice lines can be joined together by your company administrator into an invoice. That invoice can then be downloaded in PDF format, printed, and sent to the customer. SAFE is meant to allow non-techical people to work with the invoicing system, so simplicity is key.