OED Tools: NetSetMan
I manage many networks and quite often I work at customer site.
For every site I need and IP address, gateway, Wi-Fi network, sometimes proxy, a printer and many other unique network settings.
Change IP address on Windows is a process that takes too much time and many clicks.
I used to use netsh scripts to do that but it was hard to maintain.
The OED solution: NETSETMAN
This software allows to change many network parameters, browser proxy, printer, smtp server, run custom scripts and set many other parameters.