2 weeks ago the power supply (electricity and water) in our building was gone for a few hours and no one can work in the lab! So we ended in in costa coffee waiting for the power to come back on so I guess my answer is power supply after what has happened! 🙂
I knew someone would say coffee eventually! I am allergic to caffeine so I am always jealous of the coffee and tea drinkers. For me, I need a good night’s sleep to start my day right.
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