This is how it should be. Outside 9-5/work week, Use your personal phone. I do this now, except I don't work. But I do have a designated personal Cell Phone, and a designated 'everything else' phone. One number is my friends and family ONLY. The other number is everything else, it gets put on every application, every form, every 'win this or that raffle', every non-personal site/application/unknown instance that requires a phone number. 000-000-0001 doesn't work in many instances anymore.... I pay $5.00 extra per month for this number, and it is WELL WORTH IT!!!! It works for me....
Many of my best, most relaxing, non-stressful, funnest days ever, are when I leave home in the a.m. and forget to take my phones, lol.