I'm pretty diabolical, as I'm sure you know. That's why when Google released Schemer I twisted my stache, wrung my hands menacingly, and signed up. I managed to score an invite and must say Schemer is pretty addictive. At its core, Schemer is a combination personal 'plan to-do'/life goal list and a local to-do discovery site. You can either find an already existing scheme to do or make your own and chose to keep it private or share it with the world to 'inspire' others.  Schemer also lets you find things you have already accomplished, and mark them as done... great for all those list crosser offer types out there. As it should be with a Google product, search is an very useful and important part of Schemer. You can search by type of scheme or just by locations so finding all the schemes people have listed in a particular area is super simple. Schemer also is a good example that future Google products will be designed with Google+ in mind. Your circles are tightly integrated into Schemer and your Google+ profile is linked to from your Schemer profile.

From the site:
Ever wonder what to do? Us too. Schemer can help.
Whether it’s exploring a new city, checking out a friend’s movie recommendation, or just finding new activities for your weekends, Schemer lets you discover new things to do, share schemes with friends, and make the most of your day.
Think you’re up for it? Join Schemer.
Currently Schemer is invite only, but I have a few invites. If you'd like one leave a note in the comments here or send me a message on Google+

Check out their video below too... awesome.