I think it would be a cool to add a feature to let us track an achievement on our sidebar so we can see our progress on it. It doesn't have to be live updating like SB, it can refresh with the page, it would just be a nice reminder to say, "Hey don't forget you are working on this thing."
I like this idea--especially when I go on shopping sprees for my wardrobe. It would be nice to check on my gourmand and other achievements as well. Support.
This would be a lot better than constantly refreshing the achievement page when I want to check my progress.

That would be great. It would free up one more tab in the huge stack of tabs on my browser. ;)
Support!
This would be cool, I am in the process of deleting pumpkins and this, this would be awesome. Keeping a eye would keep me motivated as well.
Like a widget? That would be cool. I'm always down for more widgets.
I like this idea. c: It would stop me having to keep reopening the achievements page and search for the achievement in question each time.
I would totally use this. I'm working on the highest tier of the balloon-donating achievement and I'd love to not have to keep checking the page.
It's not a widget but we do have the Saved achievements category that seems more or less functional
Man, I'd love a widget to track an achievement.