I do love a good batch file! Or a nice PowerShell script… Lost count of the number written over the years. They can be VERY useful and save a bunch of time.
Here is a collection of scripts for your arsenal of scripting:
Networking
| Hosts file | 
BAT | Edit your hosts file easily.
Right-click and run as Administrator so you can save it after |
| Network devices |
BAT | List network devices and optinally show details. Run:
ListNetwork.bat [args, see below]
list = List all network devices
status = List network devices and show connected status
config = List network device config values |
| Whats my IP |
PS1 | Show your gateway IP address.
Uses an external API to process the result (https://api.my-ip.io) |
Certificates (Oh how I love certificates!)
| Current User |
BAT
| Open certificates for the current user |
| Local Machine |
BAT | Open certificates for the local machine |