I use [QuickSilver](http://quicksilver.blacktree.com/) on my Mac all the time. It’s one of those indispensable applications that I just can’t do without – I really, really miss it on my Windows XP PC at work, but I can’t find any Windows equivalent.
There are always new tricks you can learn with QuickSilver. Here are a couple of useful pages of tips:
– [10 Minutes of QuickSilver Tips](http://vjarmy.com/archives/2004/03/quicksilver_a_b.php)
– [Even More QuickSilver Tips](http://vjarmy.com/archives/2005/02/quicksilver_fro.php)
– [43 Folders QuickSilver Power Tips](http://www.43folders.com/2005/06/15/more-quicksilver-power-tips/)
– [Reader Tips (read through the comments)](http://veerle.duoh.com/index.php/blog/comments/quicksilver_how_do_you_use_it/)
Feel free to add any extra tips to the comments here!