Tag in Delicious - highlight text on a page, and it will be quoted in the description field. (select something and try it!)
javascript:(function(){e%20=""%20+%20(window.getSelection%20?%20window.getSelection()%20:%20document.getSelection%20?%20document.getSelection()%20:%20document.selection.createRange().text);if(e)e="\""+e+"\"";open("%20http://delicious.com/save?v=5;noui=1;jump=doclose;url="+encodeURIComponent(location.href)+";title="+encodeURIComponent(document.title)+";notes="+encodeURIComponent(e),"delicious","toolbar=no,width=800,height=600")})()
Fit images - resizes all images on a page to fit within the width of the screen.
javascript:(function(){var cheight=5+document.body.clientHeight;var newcss='img {max-width:'+document.body.clientWidth+'px!important;max-height:'+cheight+'px!important;}';if('\v'=='v'){document.createStyleSheet().cssText=newcss}else{var%20tag=document.createElement('style');tag.type='text/css';document.getElementsByTagName('head')[0].appendChild(tag);tag[(typeof%20document.body.style.WebkitAppearance=='string')?'innerText':'innerHTML']=newcss}})();