Practice makes Perfect.

There is always something new to learn when using Microsoft Excel for spreadsheets. It is such a vast program and we often focus on the job in hand and do not even realise that there are more functions and features we can use.
Attending a one day course is a good way to get away from the working environment and just focus on learning. Of course the important thing after the course is to put into practice the new things you have learnt. Practice make Perfect or at least helps you remember.