If you don’t already have either an answering machine or voicemail service on your phone, get one or the other. Be prepared to check those frequently and allow the selling agent to book and appointment by just leaving you a message and giving the showing agent the lockbox combo. Any time that you’re out, even to church or for dinner, check the machine or voicemail before you go home, there may be a showing in progress or scheduled for about the time that you would get home. You don’t want to be there during a showing. The showing agent doesn’t want you there and the buyers would feel awkward if you were there, so take a drive, go to the movies or store - just go. Let the real estate professionals do their jobs.