TextMate Shortcuts

It is super handy to deal with some routine yet trivial tasks with a few TextMate tricks.
Here I list some shortcuts which I found most useful.

Column wise selection
Option + Left Drag with mouse
This allows selection and direct editing on vertical columns.

Auto completion of the code
Esc
In many IDEs, Tab is used for auto completion, similarly you can use Esc key to do this.

Find and Replace in Project Folder
Command + Shift + F
This allows quick replace in a bunch of files inside the same project folder.

Selection of whole line
Control + Command + left Arrow or Right Arrow
Shift + Command + L

Change Indent
Command + [ or ]
This is very useful for Python when there is a block of code need to be indented.

Comment current line
Command + /
If you do Command + / two times, it will uncomment the line. You can also first selected the code block and then comment all together.

clip board history viewer
Control + Option + Command + v

Duplicate current line
Control + Shift + d

Insert Comment Banner
Control + Shift + b

Open Home directory in sidebar
Shift + Command + h

Insert Burdle Item
Control + Command + t

I did a google search during the writing and found a number of great posts and resources:
Essential TextMate Shortcuts, Tips and Techniques
TextMate shortcuts you should be using
PDF version of the TextMate cheat Sheet.