Cheap ways to keep warm when WFH

[gukvguk]

Just had a smart meter installed and the heater I have by my desk during the day is 35p per hour which I'm shocked at. Was using it so as not to turn on full house heating. I'm a warm person usually but it's colder than am used to in my (newish to me) Victorian House.

I'm already in a jumper but can't type in my Oodie as too bulky!

What do other people do that is cheap? I don't mind something with a cost to run but not 35p per hour - and prices will go up when out of contract in Feb too.

Thanks

Some great suggestions here!
Am in the office today for my one day a week and it's boiling. Such a contrast.

@gukvguk

I where a beanie ( must heat lost through head) and opaque tights under leggings.

Toast!

Ps take beanie off for video calls!