Gang of Satori

What is your favorite design pattern and why?

I dislike MVC but I keep using it!!!

>>1
I like the if...then...else design pattern. It's much cleaner than the gotos I was using previously

I rather enjoy the push rax/pop rax design pattern. Sure, when I really need performance I lay out the map of register usage in advance and I don't need that pattern, but when I code something that is not performance critical, some scripting code basically, and I just need to use rax for something, then i just store/restore it on the stack and that is all. I find this pattern to be a real productivity booster!