This is a versatile bundle of packages and classes for consistent formatting of control sequences, package options, source code examples, and writing a package manual (including an index containing the explained control sequences, options, ldots). The bundle also provides several other small ideas of mine such as a mechansim for providing abbreviations etc. Not at least it provides a number of programming tools. The intention behind this bundle mainly is a selfish one: documenting my own packages. The bundle contains an index style file cnltx.ist that should be placed in a directory in a TDS makeindex directory.