label-pln – Print address labels in three columns
Input may be a set of labels in-line in a document, or a file of labels.
Maybe you are interested in the following packages as well.
- labelmac3: Print Avery 5160 labels for laser printers
- lettermac: Simple macros for writing letters (Plain TeX)
- twoside: Two-side typesetting in Plain TeX
- harvmac: Macros for scientific articles