For a high level of security, select padlocks with pin-tumbler locking mechanisms, shackles of high-tech alloy steel to provide pull strength, and special weather-resistant plastic covers to stand up to the elements.
If you want an instant lawn, sod’s the only way to go. First, prepare your soil with lime and fertilizer, just as you would for a seeded lawn. Lay the strips of sod in a staggered pattern so that the joints overlap. Make sure the seams are tight so that when the roots knit, the seams will be invisible. Make sure you roll it all out in one day. Even overnight, rolled sod will burn yellow. Keep your new lawn well watered for several weeks until new roots have penetrated the soil.