Welcome Shminzo and pink! And congratulations on the baby, Shminzo! Have you started looking at child seats for your bike yet? 
Notinthe, well done DS
. No way DD would have coped at 3.
And did you just say you built his bike from scratch?? Now I am impressed! Please explain.
As for my bike situation, thanks all for the advice. My current idea is to get a spanner, tighten the stem (as it really is the only thing that needs doing), then take it for a first service in one month's time after I've 'run it in'.
Does that sound reasonable? Or am I just trying too hard to avoid the embarrassment, and I should really take it in even before riding it. It's sat there, all shiny and lovely in the garage, and it's even bright and sunny today
.
Shminzo, I feel a bit better to hear you say it's common in your bike shop. That's the way I looked at it - I may not have bought the bike from my LBS but they will be my go-to maintenance people.