Looking around your yard or neighborhood for unsprayed weeds is a great hobby and method to get free herbs. Be sure you can clearly identify the “weed,” so that you avoid any negative side effects.
One example is Dandelion. Find out what it looks like and what the benefits are. Once you clearly identify the weed, determine if you want to harvest it if the timing is right and you will benefit from it. Also, determine how to preserve and store the herb. Happy foraging!