I already use a few of these, but many look like products or sites that I won't know how I did without once I start doing with...
Everyone collects utilities, and most folks have a list of a few that they feel are indispensable. Here's mine. Each has a distinct purpose, and I probably touch each at least a few times a week. For me, util means utilitarian and it means don't clutter my tray. If it saves me time, and seamlessly integrates with my life, it's the bomb.
[ Scott Hanselman's 2005 Ultimate Developer and Power Users Tool List ]
The few that I don't see:
The last one mostly for WindowBlinds, because I like my Windows to constantly look new, but it actually has quite a few handy tools that come with it:
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Disclaimer The opinions expressed herein are my own personal opinions.