To create and print labels using Google Sheets, use Avery Label Merge or Foxy Labels as these are the two best extensions to print labels.

Using customized labels can help make your holiday cards look more modern and festive. In this article, you will learn how to make a group in your address book for holiday cards and print address ...

Personally, I would recommend printing a full sheet of labels for each of the “few customers I constantly write” and keep them in a folder.