Comment to the author: use cmd-` while you are command tabbing if you go too far! Similarly useful, hold cmd-tab and it will stop at the end. Also, cmd-esc if you decide not to switch.<p>I used a 15" MBP for a long time without missing a tiling window manager that much... but the problem was exaggerated when I started using a 27" imac. So I looked around and started using spectacle. Great utility. I use Quicksilver's "open application" custom triggers to get the app switching behavior, so I finally have a use for F15-F19 (on the very left side of my keyboard)! It has made a big difference for me.<p>One problem I would like to solve is switching between multiple emacsen. I have an 8:00-5:00 job and work on my own stuff after that, and I like to keep my buffer lists separate (so I can't just use multiple frames). Therefore, I open emacs again from the terminal and I wish I could switch between them with quicksilver's shortcut. Alas, quicksilver always brings up the first one. Has anyone dealt with this?