Toby Mini is a great programme for organising your tabs. You can create groups of tabs to open, for example a start of the day group, or a literacy group. One click and you can open (or close) the tabs you need without hunting for them.
Tips for organising and managing tabs
Close a tab accidentally? Or want to check on what that student closed as you were walking over? Ctrl shift t (on chrome book) command shift t (on mac) will open last tab - can repeat ad infinitum