Is there a way to set allowed delivery days (perhaps as opposed to allowed ship days)? We do not DELIVER on Mondays. And we have no way of stopping people from choosing that as an option. (no matter how much we specify it in our shipping policy) We have tried to limit it by not shipping on Fridays, but we actually have no problem shipping on Fridays for Saturday delivery. This makes us less flexible and doesn't solve our problem.
Consider setting up custom holidays. Navigate to settings>site options (edit)>Expected shipping time>Set Holidays