Preparing for Winter

I know it's still summer, but I am getting ready for winter. When November rolls around, it never fails that my husband gets a nasty cold and I go to the store to stock up on cold medicine. I finally have decided to be proactive. I am buying my supplies before the cold season hits. This is the plan:
Every other week I buy something to go into the medicine cabinet. The first was throat lozenges and cough drops. Next week I will get some Dayquil. I also plan to get some things for the girls to help them when the cold season begins. I hope that I will be prepared this year and will not have to make any surprise trips to the store.