Canned responses are a Google Apps Lab feature which allows you to save and use templated email responses from within your email client.
Here is how to use it:
- In the Settings menu, enable canned responses and save.
- Compose a new message. Type in the content of your canned response.
- When creating a new email, you can now Insert the canned response.
You can delete and insert new canned responses with the same steps.
Keep a set of canned responses which you can edit for outgoing emails or responses to save time in standard responses. Ensure the language is personalized.
Also as an added note, be sure to not include your auto signature. Otherwise, this will be duplicated when using a canned response as part of a new composed email.