Just a few live plants will dramatically improve the cleanliness of the air in your home. Plants resperate to survive, they take in carbon dioxide, and produce oxygen as a byproduct. Houseplants come in many shapes and sizes. The number one air cleaning houseplant is the 'peace lily' which is also known to be very easy to take care of.
Aeration is a great way to allow more oxygen and water to the roots of your grass. This is a great way to have a healthy green lawn and can help with compaction in your lawn.