ALWAYS AT HAND

There are phones in which you have to call often, and the number to memorize is not possible. Yes, and this is not necessary: they can literally always be at hand. Take a narrow paper plates with numbers need phones, their width should be equal to the width of the handset; put on her plate and the top roll of sticky tape. It not only will keep a “cheat sheet” on the handset but will protect it from contamination.