Best advice about not losing a hearing aid. If it’s not in your ear, it should be in the charger. If you have to take one out of your ear, and your charger is not available, then hold it in your hand until you place it back into your ear.
Obviously, be careful dressing or undressing that you don’t knock one out of your ear. I check mine anytime I put on or take off a jacket or coat. Or, when I dress or undress.