Side Effects of Cold Weather

As the temperature has dropped and I've opened my windows, I've noticed a few fun things. The viscosity of liquids like dish & laundry detergent, body wash, and shampoo has increased. Also, I had to re-zero my bathroom scale because the spring had shrunk. Of course, the air pressure in my bike tires (which were around 100psi to start with) dropped. What other fun things will I notice next?