Tip: Indenting large blocks of code.

A useful tip that's probably not common knowledge:

If you have a large block of text, say between a begin and an end,
that you want to indent, highlight the code and press control-K-I.
This will shift all the highlighted text left. Control-K-U shifts it
right.

You DID know about that, didn't you. Of course. Just checking ;)

Cheers
Jeff