I have a small seat bag that carrys my spare tube and small multi-tool. I only ride right now 1/2 to 2 miles in the morning so no change of clothes. I carry my padded shorts for the ride home (which is 6 miles)in my back pack. I also carry a rain cape which folds compact. A water bottle that stays empty until the evening ride. Also my job is dirty so I need no special clothes.