i've been getting into the habit of using my panniers on a regular basis for groceries, i've been kicking paper and plastic bags out of the equation and found that the panniers that i got for $20 at the sf bike expo work perfect for hauling 40lbs of groceries on bike, forget the fact that i have to haul them up the steepest hill in oakland just to get them home, it makes everything so much easier to handle instead of walking with loads of food. i have a tendency to shop for food every other day because i love fresh food so my load isn't always this heavy. the farmers market, trader joe's, and whole foods are close too so that makes it a timely and easy commute. i am thinking of getting some folding rear bike baskets just in case i do forget my panniers while i run around the city. what's your take on panniers vs. folding rear bike baskets?