Ok cycling mustachians....I don't commute but will quite often ride up to the market/library for a few items, produce, granola bars, 6 pack,etc. Things I can easily fit in my backpack. Looking to avoid the sweaty back syndrome in this mid-Michigan humidity. I'm looking for a not too fancy rack and pannier solution to give a try. Ideally something that will collapse when not in use and a bag that removes quickly to take in and out of the store. If it helps, I ride a Giant Escape hybrid for reference. Thanks