Enter a new hack that I have been trying. All the appointments are written in one color, usually black but the example to your left is in green. MNO stands for "Mom's Night Out", our homeschool moms get together monthly. Our meetings are all planned till the end of the year but not all the details have been hammered out.
MNO is what I wrote some time ago to "save the date". I added a little red arrow pointing to my notes section (that I usually don't use), and wrote in the extra information. The time will be added later and soon all the information will be entered into my weekly pages.