Must Remember to Write Patterns!

A few weeks ago I started making a light and airy spring time scarf using a new stitch I had found on Crochet Today! magazine's website.  Well, things didn't go quite as planned, but as a result I ended up accidentally creating my own pattern.  Very exciting!  It looked like this:

And I loved it!  It ended up going very quickly, which is great when you have two small children who require your attention 99% of the day.  But lo and behold, I did not write down the pattern as I worked it.  I thought, "Oh, its so easy there is no way I couldn't do this again.".  Well, here I am, looking at the scarf and trying to re-create it in my head.  I sure hope I can, because I just bought the prettiest green yarn that will look great for spring and summer.

Am I the only one who does things like this?