Oaktree
Super Member
i used a red tshirt once for a flag.
red shop rags work ok in a pinch too. always got them inthe tool box!
I always have a couple of red onion bags (the 10 or 25 lb ones that supermarkets get their bulk onions in) in the truck. Use 'em mainly when picking up cans on the side of the road, but serve as a flag in a pinch. They close with a drawstring which makes it easy to attach to a ladder, long lumber, etc.