I've been in the geospatial industry since 2002. I primarily use ArcGIS, Python, FME and less and less MapInfo. I'm interested in learning QGIS, GRASS and other open source GIS software, but my clients use commercial software, so I don't get much chance to explore them.
I try to learn something about GIS everyday. This site is certainly useful for that.
You found the secret sentence.