Is there a nice way how to add custom latex templates to vim? 
In texmaker I have shortcut `shift`+`F1` and that while pressed writes all `\includepackage{}` I use.

Well, now I think about two approximate ways:

1. While creating new *.tex* file, I can import text from skeleton. But there is but. I have more different types of documents I write and I do not need import everything, because this way I will need to change part of text imported.
2. Define my own commands in vim. But there is also but. I do not need this commands in every type of file but only in *.tex* files and it is also more comfortable to press `shift`+`F1` instead of typing command.