Removing nettles, sand burrs, stickers, etc. from clothing can be frustraing, tine-consuming and even painful if you get stuck in the finger. Take a patch of coarse sandpapaer with you or keep it in the laundry room. Wipes the stick tights off easily.
This trick works well on denim, canvas and other tough fabrics and does not work on knitted scarves, gloves, stocking caps and other soft fabrics. Those, you still get to pick off.