Easy

I had a problem which was very similar to something I had solved a few years ago on another project. Ah, ha! thinks I, I'll just use my notes from that project so this won't take too long. It'll be easy! Yeah, right. A few hours later, I'm scratching my head and wondering how I got it to work in the old project. It turns out that the old notes was missing one command. One whole command! Assuming something is going to be easy is the kiss of death, I tell you.