Some of you need screwdrivers and pliers. Others need network analyzers and cable tools. Still others need hard disk repair programs and anti-virus software. If the cost of these tools worries you, compare it to the amount of money and time you stand to lose if you don't have these tools. In some cases, such as computer graphics designers, webmasters, and network managers, it might be difficult or impossible to perform the job at all without specialized tools.
Tools can also take the form of information resources.
While the Web, Usenet News and mailing lists are excellent sources of technical information you shouldn't ignore old-fashioned magazines and newspapers. All of these sources can be excellent tools for keeping your knowledge current. Even better, your major investment for these tools is only the few minutes of time required to read the material. Not a bad return on that investment. If you are still trying to get a job or find yourself in financial straits, visit your local library.