I tried the cardboard and wood chips. As stated elsewhere, that is only good for one year at best. Being old and decrepit, I just let the weeds grow. But, recently, someone suggested I put down carpet. It lets the water through and kills the weeds. I was told I could get free carpet from carpet installers who pull out old carpet when installing new carpet. This sounds intriguing. So, what do others think of this idea? I am still trying to think through all of the ramifications. Thank you.