How about this also: you use electricity at home for heating, cooking etc to maintain the life of people and pets in the house. Then they go outside and perform mechanical work on something, e.g., at the gym.
For example, consider the reaction of ethanol burning (without worrying about details)
$C_2H_5OH + O_2 = CO_2 + H_2O$ + energy
Now imagine somebody cooking moonshine alcohol at home, combining [electrical] energy, water, and carbon dioxide. In principle this should be possible, the reaction is reversible. Next this individual consumes the product and goes outside to work out, or do some other great things involving some mechanical work. This would be the case of using electricity at home that does not end up as heat at home.
More seriously, we could consider other chemical reactions that can be carried out at home using electrical energy, that would produce some "fuel" for a human being (or his pet, his car, his toy helicopter etc) that would be able to use it for doing mechanical work outside of the house.