What's the most elegant way of commenting / uncommenting blocks of ruby code in Vim?

Question

In VIM, at the moment when I need to comment out a section of Ruby code:

• I navigate to the first column in the row I want to comment out
• I press CTRL-v t

Answer 1

I like using the following:

• put cursor on the first line you want to comment out
• enter ma (no colon) to put a marker on that line
• go to the last line of the block you want to comment out
• enter :'a,.s/^/#/ and then enter

That says, from the line containing marker "a", up to the current line, substitute a hash for the beginning of the line.