Sometimes you need a sidebar as default for your blog and your cart. I wanted to create a side bar that sets by default without applying to pages and post manually.
To do this I used Woosidebar plugin.
Add to the plugin area as usual, activate it and navigate to Appearance > Widget Areas.
Here you create a new side bar that you can apply to any pages but in this case specifically to Woo Commerce pages.
We used the Woo Commerce sidebar plugin on the following sites:
I have also used other plugins for sidebars on sites such as Full Focus.