Enable or disable your wireless card from the command line
This site taught me one of my favorite tips to save a tiny bit of battery on my laptop and let me be lazy at the same time.
Basically it points you to download devcon from Micro$oft, identify what kind of wireless NIC you have, and then write a quick script to disable/enable your wifi card.
For example, my script to turn off my NIC is simply:
devcon disable *DEV_4315*
And to turn it back on:
devcon enable *DEV_4315*
Lovely.