I need to collect a parcel from the concierge in my building. DS (2 months) is asleep. I really, really want to go and pick this item up tonight. It woud mean leaving the flat, walking down four flights of stairs - I wouldn't take the lift just in case - exiting the building and walking about 20 yards across a courtyard to the office. I would aim to do this at lightening speed.
What do you think?