Itsycal

The system clock opens to just the time, so seeing which days this month are weekends or what date next Wednesday is means opening the Calendar app. Itsycal fills that: click the menu bar and a mini month calendar pops up, dates clear at a glance.

Features

Mini Calendar: A month view pops from the menu bar.

Event Display: Pulls in system calendar items.

Light & Open: Tiny, free, and always up top.