Regarding regexes, I would recommend http://www.regular-expressions.info/tutorial.html http://www.regular-expressions.info/tutorial.html It doesn't take long,

Regarding regexes, I would recommend http://www.regular-expressions.info/tutorial.html http://www.regular-expressions.info/tutorial.html It doesn't take long, and I found the explanation clear enough that it's stuck. It's also a good reference site if you want to quickly remind yourself what X means in Y dialect. I also have a long todo list that more things go on than get done. But, I think it's probably unreasonable to expect to learn more than say one or two programming-language level things a year if you've got a job. Certainly if you're going to do the learning thoroughly and not just forget it all by the next year.