A few years ago I went to online scheduling via appointy.com.  I've linked it to my website.  Now 98% of my client appointments, reschedules and cancellations are scheduled by the client without the phone calls and emails of when are you available....  For under $300 a year it's really helped. It also links to my Outlook and Iphone.  As far as the $1.33 of interest, yup, that's still there.