sunamo 

Converting rows to a single string

Wrapper around FluentFtp library

Working with YouTube

A collection that maintains its content even in a permanent file

Wrapper around Html2Markdown library

Parser and generator for .editorconfig files

Sending mail with several providers (Seznam.cz, Gmail, etc.)

Interop with classic WinAPI

Work with .ini files used in Windows

Some BCl+mine code's helper classes for easier debugging

To change from arrays to List<T> to create the required number of dummy elements in List<T>

Search queries for many servers

Concatenation of pairs on one line with two definable delimiters

Retrieving files with automatic exception catching and further processing after

Non-generic collections. Low performance compared to generics.

Wrapper around TidyHtml5ManagedRepack

Caching files locally to limit HTTP requests

Management of txt files with data. Maybe even with headers.

Working with resources that have been added to the application as "Embedded"

Support for several logging system based on their output