Textmate favourite features

Sometimes you just forget the stuff you take for granted, but often you hear of people new to apps and not realising what's there. Here's a couple of the features of Textmate that are probably my most used... CMD + T - Go to file, pretty hot. List of files is shown in a dialog that it is in order of last edited/open file, with the last file you worked on as being selected. So I have a big habit of spending my life CMD+T then Enter all day along. Also by typing will filter down the list of files pretty damned fast. CMD + SHIFT + T - Go to symbol. Hotter still. This allows you to easily navigate through a file with ease. If you single click on a method name, it jumps to that method without closing the dialog box, double clicking closes the dialog. Particularly handy working on a large class/module this tends to stay open all day jumping back and forth between methods. CTRL + SHIFT + A - Hottest, subversion integration. Diffing from the commit dialog is a godsend. What's YOUR favourite feature of Textmate ?