While those with small yards might get by with an inexpensive, easy-to-store hand aerator, it makes more sense for the vast ...

Core aeration improves the soil and grass by providing several benefits ... Machines can be rented from many nurseries, hardware stores or rental agencies for a nominal fee.

Depending on how large your lawn is, you can opt for a manual aerator or rent or buy an electric aerator from your local home improvement store to make aerating large swaths of land easier.