babe, sunscreen. water bottle....
best if you can freeze 1 1.5litre mineral water in the freezer
first and bring that frozen bottle over.
here's a tip, break open the bottles cap, pour out 1/4 water, let
it stand in the freezer tilted at a angle, so the ice wont buldge
and break your bottle.
Then when you go to work, pick it up from the freezer and fill in
the water.
You will roughly have decent ice cold drink for the noon time.