A £50 discount at Currys, discounted entry to Tussaud Group attractions and cheap CDs are the most popular options in Centrica's new voluntary benefits scheme.
The scheme, which is provided by Perkz, began rolling out to staff in August.
Marc Bishop, head of reward at British Gas, said: "It isn't the most expensive thing in the world and it allows [us] to illustrate to the employee base that we're a good employer."