Why not build an app that keeps a log of every time you log into your email, stores it to x specified # of logins and sends you an sms showing your email activity including # of logins, what time and IP address.
I've been working from home for the last year at least. I must say it is dreadful and downright uninspiring, however if you can find someone to keep in contact with, especially someone working on the same project (who pushes and challenges you) things won't be so bad.
I suggest lots of outdoor activities, exercise and lots of breaks away from the computer even if you feel like you should be working.
edit: you could also try to find a meetup group in your area to get inspiration or simple social interaction with folks who are into similar stuff.
Glad you did all that testing to find something so damn obvious. Look at how they rank on google - they don't. It was really obvious they were spamming craigslist.