Some easy-peasy Alfred Plugins.

[[http://herman.kopinga.nl/wiki/_media/btw_hoog.alfredextension?id=alfred&cache=cache|{{:alfred_extension_logo.png?30|}}]]\\
BTW (dutch sales tax) calculator.\\
Multiplies input number by 1,19 and copies this number to the clipboard.\\
Usage: btwh <number> and then command+v to paste. 

[[http://herman.kopinga.nl/wiki/_media/virtualbox_start_vm.alfredextension?id=alfred&cache=cache|{{:alfred_extension_logo.png?30|}}]]\\
VirtualBox virtual machine starter.\\
Usage: vm <name of virtual machine>