My personal experience is that regexs solve problems that can\'t be efficiently solved any other way, and are so frequently required in a world where strings are as important as
I find that regex's can be very helpful depending on the type of programming that you do. However I probably write less than one regex a month, and because of this long interval between requiring regex's I forget alot about how they work.
I should probably go through mastering regular expressions or something similar someday.