Shortcut learnability in Pharo
A small tool was introduced in recent Pharo 5 images. It is called Shortcut Reminder and reminds you n times about shortcuts that one can use as an alternative to clicking around.
One can enable the tool via Settings. Anytime you use a menu item that has a keyboard shortcut the shortcut is displayed on the screen in large letters. This happens n-times. Depending on your learning curve you can set the number of repetitions in the settings.