You could make money doing something you love (or like [or maybe not so much but just really good at]). It's great to see a spreadsheet come together, and usually a lot better than what you originally envisioned. Especially when the dang thing works.
These are the pros and cons of selling spreadsheets. The real beauty in this idea is that you could do the work once and there is no limit to how much you can earn, especially with effective use of the internet and other mass communication tools.
By opting for the competitive and performing "Spreadsheets for Small Business" and "Spreadsheets for Actors" ready-made spreadsheet packages in the detriment of time-consuming and difficult to use programmable spreadsheet generators, users can handle an extensive spectrum of business processes the quick and easy way.
One user at a time : In the instance where there are a number of people required to work on a spreadsheet, they can only access it when no-one else is working on it.
examples of spreadsheet packages
blank spreadsheet templates
spreadsheet templates for small business