Scheduling nightmare? For me it is

Been writing down my appointments in a book/binder But, when putting down 4 jobs a day, or more, plus my notes and hen scratching, it looks like hell. Yea, my writing is messy... so, is there any way to do this more efficiently using my cell phone? Tough to do I suppose while on the phone though.

Any advice would be appreciated. I know I can get a bigger binder and stuff, but I kind of want to be more efficient and it would be nice for an employee or two to see appointments....