Welcome to our world ! Unless the grass is well watered, you need to dig a horseshoe shape flap over the site, leaving the flap connected. You can cut under the sod flap so you can fold it back. This will keep the grass alive. Cutting plugs can show up later as dead spots & make you very unpopular. If the grass is always well watered & the soil is damp all the time, you can get away with cutting a plug. As previously described, carry an old hand towell ( a white one helps you to spot your coin) to put your dirt on, then you can put all the dirt back & tamp the flap back into place. After you do it enough times, someone else will have to pay close attention to know that you have been there. It all comes with practice. Now start digging!! Spotz