Favicon Generator (realfavicongenerator.net)
That little icon in the tab of your browser is a pain to get right, so this web tool is a huge time saver. By submitting a 260x260 pixel picture, the site returns all of the icons needed for most of the popular browsers, tablets and phones. You also get the code you need to put into the head of each web page. We redid ours using this site.