To save time - just add 4 tea bags or 3 spoons of coffee to the kettle then bring to the boil. Please do NOT mix the 2 as this will confuse the kettle.
You can also try the latest invention which is a vacume flask. This will keep hot things hot and cold things cold.
I have just filled mine with piping hot coffee and a choc ice.
I am going to Les Arcs on Saturday. Will there be a kettle and a telly in my room. If so, will they be linked so that when I put the telly on the kettle boils, and when I put the kettle on will the telly come on and tune itself to Eurosport?