Am I the only person who does this:

I see somthing/do somthing and then think OH I HAVE TO WRITE ABOUT IT IN MY BLOG! Then start narating everything that happens in my head as if it is how I will type it in my blog. But after getting so exited about it, once I get to the computer and start typing: I never write about what I envisioned.

Does anyone else do this? I was just wondering cuz I do it almost weekly.