Those ear cleaning drops kits costs beaucoups bucks, and the active ingredient is often pretty close to hydrogen peroxide. :’)
A bottle of H2O2 costs me 50-60 cents and lasts nearly a year. It is a “miracle” drug to me. Not getting sick for years is worth way more than what I pay a bottle.
I mean I am down to tiny fractions of a cent per day for good health! You cannot imagine how much that pleases a miser like myself. ;-]