At least 112 programs are installed on my computer and for 29 of them an update is available. Looking through these 29, I would say that I use around two thirds of them on a regular basis, and I did know some of them required an update.

Frankly, when I boot a program I can’t be bothered with updates, which is why I was still running old versions of FileZilla and Winamp for quite some time.
UpdateStar provides a quick and easy way to check all installed programs on your system for updates. It covers freeware, shareware, demos, and commercial software.