Improve your jQuery - 25 excellent tips

jQuery is awesome. I've been using it for about a year now and although I was impressed to begin with I'm liking it more and more the longer I use it and the more I find out about it's inner workings. I'd call myself an "intermediate" jQuery user and I thought some others out there could benefit from all the little tips, tricks and techniques I've learned over the past year. The article also ended up being a lot longer than I thought it was going to be so I'll start with a table of contents so you can skip to the bits you're interested in.