If you live on London and use the tube, you will know that its the most dreaded part of the day as soon as temperatures reach 20 degrees. Even if you have managed to keep cool, being crammed into the train with everyone else who hasnt, well its not worth thinking about.
So tips to stay cool, calm and collected? Get a chauffuer with air con. Failing that?
Evian water spray. It says what it does on the tin... Spritz and breathe.
Tisserand Travel Ease roll on. Roll on to your pulse points and think of being in a nice cold shower. It contains Grapefruit, Bergamot Mint and Lemon Leaf oils. It comes in a a small roll ball tube. This is also great for flying. Roll on before landing and arrive somewhat refreshed!
Antibacterial Hand Gel. Yes it will kill the extra bacteria from the heat, but it will also cool your hands.
You buy all of these in Boots.