Aquarium

For those who disfavor feathered or four-legged (mammalian, as opposed to reptilian) pets, setting up a small 'aquatic terrarium' (AKA aquarium) in a corner of your house - or better yet, your room - can help alleviate some of your day's stress. Heard of animal-assisted therapy? Just don't get bettas or piranhas, yah? Fishkeepers take note.