End of Line Column Typing?

I think I remember someone mentioning that this is possible, but I
can't find any mention of it.  I'm looking to type the same thing at
the end of all the lines in a file.  They don't line up in perfect
columns , so the standard column typing won't work.  I need Textmate
to find the end of each line and insert there.  Is this possible?

Thanks,
Bryce