Cloudy headlights affect hundreds of thousands of vehicles in virtually every make of car and truck, foreign or domestic. Headlight restoration or headlight repair is the process of cleaning the headlight lens with headlight cleaner kits or with items sometimes found at your local auto parts store. Save money over expensive replacements, restore them yourself, it's quick and easy, best of all anyone can do it with no special training or tools.

"I’m not sure if this is professional or not. It’s very self motivated and ruthlessly lazy, but also requires experience in knowing what will be a pain later down the line." James sounds like he's being entirely professional to me; this is a good post about maintaining services in your spare time, amongst other things.

Paper by Ali Mesbah and Shabnam Mirshokraie of the University of British Columbia, Canada.

CSS is a widely used language for describing the presentation semantics of HTML elements on the web. The language has a number of characteristics, such as inheritance and cascading order, which makes maintaining CSS code a challenging task for web developers. As a result, it is common for unused rules to be accumulated over time. Despite these challenges, CSS analysis has not received much attention from the research community. We propose an automated technique to support styling code maintenance, which (1) analyzes the runtime relationship between the CSS rules and DOM elements of a given web application (2) detects unmatched and ineffective selectors, overridden declaration properties, and undefined class values. Our technique, implemented in an open source tool called CILLA, has a high precision and recall rate. The results of our case study, conducted on fifteen open source and industrial web-based systems, show an average of 60% unused CSS selectors in deployed applications, which points to the ubiquity of the problem.

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