When I was in college, I rented a house just outside my budget and found I couldn't afford things like cable internet.
I had a wifi->ethernet bridge that was originally to connect my OG Xbox to a wifi network. I also had neighbors with Wifi using WEP encryption. An idea was born.
Was able to use aircrack-ng on my laptop to crack their WEP key in about 15 minutes. Plugged that key into my wifi->ethernet bridge, and then hooked that into my router. Bam, my whole house was online.
That worked for probably a year and a half.