I was just playing around with snippets in Sublime Text for the first time (despite being a long time Sublime user). This was just for fun but it's useful and shows off how powerful the snippets can be.
<snippet>
<content><![CDATA[##${1/./#/g}#
# ${1:header}
##${1/./#/g}#]]></content>
<tabTrigger>thead</tabTrigger>
</snippet>
Just type thead and hit tab and you'll be presented with:
#########
# header
#########
Not super special yet, but while header is still highlighted try typing in your text header and it auto-magically expands to the right width. I'm sure someone could add to it to make it accept hard returns as well!
#########################
# always one step ahead!
#########################