I am an absolute fan of adapting your work environment to your needs. Spending an hour to set up some shortcuts is virtually always a good time investment.
Then you can easily drag your most used commands into a new bar. You should be able to save a lot of time on, e.g. aligning objects in PowerPoint or sorting and filtering data in Excel. It is entirely up to you and the operations you use the most.
Here are the two files that contain my current setup for PowerPoint and Excel:
You can easily import like this:
If you need more information on the topic please have a closer look here: How To Add Custom Tabs To The Ribbon In Microsoft Office