Today we all have cell phones, so do you actually KNOW anyone's phone number anymore??
What if you need to use a different phone to make a call and you can't access your phone's phonebook!?
It happened to me once in a car accident. I was hit and my phone flew under the seats. A fireman offered me his phone but I barely remembered my husband's cell phone number!
Don't let that happen to you. Make one for your self and your spouse and especially for your cell phone using children. Don't your kids phones ALWAYS seem to need a charge?? At least they can access numbers to use on another phone. No more 'teen' excuses! HA! HA!
Print and put together this 'Matchbook' style mini phone book: