Folding Plastic Grocery BagsIn 1987, when I first started picking up roadside litter, I asked my friend to save me her Wal-mart bags. She brought them to me in a Wal-Mart bag and all of them were neatly folded. This is where I got the idea of folding my bags. Using these bags, I would stuff my pockets with over 20 bags and walk a mile and pick up the litter, filling the bags as I walked. I never ran out of bags.