As the cost of computer hardware has decreased in recent years, the cost of software has remained relatively stagnant, or in some cases has even increased.
Luckily, there is a lot of free, high-quality computer software that can often replace more famous products. Such software is given away for a variety of reasons; in some cases, the authors hold a philosophical belief that computer software should be entirely free, while in others, the sponsor company wants you to purchase an "advanced" version after you have tried the free one.
In addition, some software vendors (for example Microsoft and Symantec) allow you to purchase cheaper versions of their products under certain circumstances.
I can help you to save money by evaluating your needs and suggesting free or lower-cost alternatives that will still get the job done. I can explain the trade-offs that might have to be made, and give you training to help you get up and running with any new software that you choose to install.