Help plz

Anyone have any idea what this tune is? I was practising and it just kind of came to me - I seem to remember it from somewhere, but haven't a clue what it is (it's probably something from the books I used to learn piano in the first place, but I don't have those any more).

(Sorry for the audio quality & lack of polish - I just kind of banged it out while it was still fresh in my head ^^; )

In other news, I'm sure the Royal Mail wants me to become a hermit or something - I go out to the shop for 10 minutes and in that time I miss not one but 2 parcels 8|