Over the last few years, these are the the few pieces of software that have made a meaningful impact on my life:

• Firefox 1.0: the best browser yet made
• Bloglines: an RSS reader that syncs between home and work.
• Thunderbird: my favorite email client.
• Rhapsody: never buy music again, and listen to everything.
• Eclipse: the first real IDE I've used.
• The Cisco VPN client: saves me from driving in to work for incidents and launches.