You'll want a cover to protect your winter-bike seat from the ravages of thieves and road salts. If you're the type to ride in winter, you likely have a few Apple bags stashed away. Find one.
Open the drawstring and slip the bag over your saddle. The tip of the seat should fit snugly in a corner of the bag. Wrap the rest of the bag around the body of the saddle and knot the string around the seat post. Insert earbuds and ride away in double-layered comfort. (A shower cap or grocery store bag could also work, but they get tattered and don't last long.)
[Photos by Broke in Mile End]