Random questiom

So twice a year I go through all of our medicines and throw out/replace anything expired.

I was just cleaning and noticed that our hydrogen peroxide and rubbing alcohol were expired

Do you replace these? Is it really a big deal if they're expired? It's not like we're drinking them but I never even thought they could expire!

Random questiom

I replace them about every two years. I know that rubbing alcohol can turn into acetone over time. At a dollar each you just might as well buy new bottles.