I don't use twitter very often; but, when I do, it's usually clicking a share button on etsy or on a blog.  I'm frequently too lazy to do much more than click, which made me realize that I'm probably limiting how often my blog posts get mentioned by not having a 'share' feature up front and at the ready.
So, I've been adding the share utility to the bottom of each of my posts.  I've already got it set up to automatically add them to new posts, but it'll be slow, tedious work to go back through all of my posts and add them.  Since some of my older articles get traffic, it's worth it.

For those of you not using blogger as your blog utility, check out AddThis.  It's super easy peasy to set up, and you can even get info about your clicks.