Ack is an awesome tool to find stuff in text files, specially code. But I don't like the way it paginates the results. So, I'm using the following bash alias to make it work like the default git pager setup:
alias ack='ack --pager="less -FRSX"'
You can also add the parameter to your .ackrc file, like this:
Notice that you can't use quotes in the .ackrc file.