Google Add-Ons are services that add features to Google Docs, Sheets, and Forms. After installing an Add-On, you can access them in Docs and Sheets through the Add-ons menu, and the puzzle piece icon in Forms.
Form Limiter will turn off a form at a time a date you choose, or when the form has reached a number of responses that you choose.
FormRecycler is a Google Forms Add-On that allows you to copy questions from other Forms in your Drive.
Copy Folder is a Google Sheets Add-On that allows you to copy complete folders in Google Drive
Flippity is a Google Sheets Add-On that creates flashcards and quiz games. It can also create random student groups from a class roster on a spreadsheet.
Save As Doc is a Google Sheets Add-On that will save the data from a Sheet into a Doc. Each row of data is saved onto a separate page of the Doc. This can make it easier to read the data by reorganizing each row of data onto a single page. This works well for spreadsheets created from Google Form responses.
Doc to Form is a Google Docs add on that will create a Google form from the text of a Google Doc. This is useful for creating forms from existing assessments.