I am a huge fan of your store. My suggestions:
1-Sell shirts and other physical things
2- My favotire thing about your store is that the cool stuff is easy to see.. Its curated. Well done.
3-Interact more with local entrepreneurs, and people like the Artisans Asylum. Maybe teach classes there.
4-Writing workshops?
5-Buy a MakerBot 3D printer and charge the public to use it?
6- That Egg machine is amazing. Someone should make a documentary about that.
7- Model after the Trident in Boston... Sell coffee, set up some wifi, and turn the store into a place where smart people want to hang out.
