No money to buy commercial software? Start using Open Source Alternative Software. If you don't know where to start and what open source software can be used to replace the one you are good at, visit this site:
http://www.osalt.com/
This site will give you good recommendations for open source (free software). So, you will know what software to use for your job. For example, you can use OpenOffice as an alternative to Microsoft Office.
If you see many open source software listed, you can read reviews to let you decide what to download.