I’m rather enamoured with this little plugin. It’s a regular expression evaluator, great for writing and checking regular expressions and knowing that they’re going to work in the way you think they will.

There’s some very nice features that I doubt I’ll use, but that’s the beauty of a good tool, until you start to use it regularly, you don’t know that you need the features.

I’ll be using it to ensure my spam filters are optimally written in future.