1- Window List with App Grouping and Window preview:
Cinnamon default window list is faulty and goes messy when starting many apps and should be changed with a Window List with App Grouping and Window preview for more elegance and practicality.
2- Cinnamon netspeed as an alternative to mate-netspeed:
Cinnamon should have a default netspeed applet like Mate does. The one available here http://cinnamon-spices.linuxmint.com/applets/view/18 takes half of the panel and doesn't monitor many interfaces.
3- Intellihide option for Cinnamon panel:
to allow more space for work while maintaining an elegant desktop