A few weeks ago I needed a little script to enable simple left and right swipe gestures on touch devices. People sent me links to amazing libraries that emulate all the possible gestures out there. But I didn't want all possible gestures, I just needed one. This is a common issue and <b>Lea Verou</b> explains it in detail. You should definitely read it.

You might think that linking to a separate print stylesheet would be a good idea from a performance point of view. <b>Stoyan Stefanov</b> did a little bit of research and yes, you guessed right, <em>linking to a separate print stylesheet is very bad for performance</em>. This does not mean you should not create a print stylesheet, you should just not link to it separately.

<b>Jason Grigsby</b> argues that the most important thing you can do if you want to optimize your site for mobile is to focus on <em>performance first</em>. Once performance is good you can start focusing on things like mediaqueries, but only then.

Performance of your website is important. We all know that we should limit the amount of http-requests and that we should minify and gzip our stuff. But there are other forms of performance as well, like CSS performance. <b>Doug Stewart</b> wrote this good introduction to CSS performance.