Well I think I posted the first dreaded "we should do this" comment someplace so I should probably take ownership of this.
One problem we will run into at places like ABC Electronics is the limited hours. What do people think about lunchtime field trips? It doesn't have to always be that way, but it might be a fun thing to do.
So let's at least start a list, do me a favor and post details if you feel like it so I don't have to do the legwork.
Also keep in mind some of these will be free, some not.