I have 3 stacks that are all do one small thing but do it very well! All of the below stacks are available now on my store for only $0.95.
Date Time will dynamically display today's date or the date that your webpage was last published. You can chose from over a dozen different date and time formats. It also supports localization in 25 different languages! You can also style the text size and color. For more info, check out the Date Time Product Page.
Fluid Image is a responsive design based image stack. If you have a responsive or variable width site, this stack will allow the image to grow and shrink in size with your site instead of just sitting there at the same fixed height and width. You can even apply CSS borders, corner radius and drop shadows to your image. For more info, check out the Fluid Image Product Page.
Markdown is getting crazy popular. Now you can type your webpage contents directly in Markdown and have it converted to HTML for you automatically! The stack comes with a great cheat sheet built-in in order to help you get up to speed with the Markdown syntax. For more info, check out the Markdown Product Page.
I hope that you enjoy these new stacks!
Edit: I forgot to mention that the bargain price on these stacks is only for a limited time. Act fast!