As a developer you’re probably familiar with the FamFamFam icon collection. It has certainly served me well over the years. But even though FamFamFam is great, there’s always room for improvement. That’s why you should check out the new FatCow collection, comprised of no less than 1,000 icons in both 16×16 and 32×32 high quality [...]

To redirect all incoming traffic to a new site and send an http status code indicating that the content has moved permanently, use the following snippet in your .htaccess file:
 RedirectMatch 301 ^(.*)$ http://www.mynewsite.com/
The 301 code is the status for permantly moved content. The regex ^(.*)$ matches all urls and finally http://www.mynewsite.com/ specifies where visitors must be redirected [...]

Helpful link to create favicons from your favourite image online:
http://tools.dynamicdrive.com/favicon/

http://www.smashingmagazine.com/2008/12/15/10-useful-techniques-to-improve-your-user-interface-designs/

This is a tip I read here, I’m just repeating it here for my own reference.
If you work with css floats much you’ll eventually come across this problem:

2 Floated elements inside a container. The container doesn’t expand to contain the floats. There are a lot of solutions to this, such as sticking in an element [...]

I couldn’t have done it any better, so here’s the link to the original article:  10 tricks