Remember there are so many exciting things to do and venues to visit in London that are free.
This weekend we visited the Anaesthesia Museum. It is a medical museum with a collection containing over 2000 objects relating to the story of anaesthesia.
Admittedly I don't remember too much of it as I felt quite drowsy the moment we walked in, and I needed to use smelling salts to stay awake as I staggered from one exhibit to the next.
As always - use it, don't lose it!