I found that as I was learning functional programming, I started changing the way I was writing code even in imperative mode. I was separating things better, programs became more semantic and there are many opportunities to use functional style, but I still think imperative code is faster and easier to write for small functions, up to 20-30 lines of code.

Also, because it is so similar in a way, I learned a new appreciation for unix pipes and the shell syntax for composing programs.

I will continue to learn FP just to upgrade my programming skills.