It's funny, I have an excellent memory (some have described it as photographic), and I have used this technique to try and improve it even further. 

However, try as I might; the technique won't work for me; when I usually remember stuff; especially mundane things. I remember stuff like, how I felt at the time, it's weird I can't explain it.

Some other things, I remember the inflection in the voice of the person telling it to me. If they spoke in a monotone, I won't remember it.

I've always found it strange...I'm very annoying to argue with, as long as I stay relatively calm, I can remember every word of arguments I've had, which makes it impossible to lie to me. :-)

*Cg*