This may be child's play in the business world but I'm not in that world

My husband is a wood and carpet installer. In the past he's contracted (mostly) thru one store
and a couple builders but has decided to become more of a "free agent". Now he's juggling 3 stores
and 3-4 builders. Scheduling is getting tricky. He's asked me to find a way where all his designers and
builders have access to a schedule sheet (or calendar) and can write to/edit that schedule sheet and everyone see the
changes and additions to his schedule. So I'd have maybe a 2 month calendar that the designers and builders
could fill in dates with jobs and save the changes. The next time someone logs in, they'd see the updated schedule
and know when he would be available. Seems like a simple request, right?

Course free is always a bonus

Several people
would have to be able to access the calendar via password. To keep this OT, I would, of course, manage the helm via my
uber wonderful G/N 2014 tablet

Thanks!