If you can't beat'em, eat'em
Many of the plants listed here are edible. To find them, just search for "edible" from the box at the top right corner of this page.
When gathering plants to eat, make sure they've not been exposed to herbicide or roadside dust and pollution, and wash them as you would plants from the garden. Also make sure that you've correctly identified them! In some cases mistakes could have serious consequences.