Rename: Stripping Beginning Numbers

I have a whole slew of files that look like this:

01 - filename1.txt
02 - filename2.txt
03 - filename3.txt

Problem: how to remove the numbers and the dash, leaving just the filename?

Solution:

rename "s/^\d\d - //g" *

The expression ^\d\d - basically means, the first two digits (\d) at the start of the line (^), followed by the space and the dash.

Simple trick, really. Putting it here in case I forget.