Summer in Yerevan

I have pretty much been over the moon because of the fact that I'm spending the summer in Armenia. My day-to-day existence has suffered, since all I can think about is Yerevan in all its wonder. I visit often, so I still remember my city well and have been in every imaginable historical site outside of Yerevan, but I can't help but notice every single summer that Yerevan isn't nearly the same place I leave after each trip. New sites, cafes, bookstores, and other establishments spring up on every turn. Yerevan is changing, and I seriously can't keep up with it from the villages of Alabama.

So, I have a plea. Please please please tell me some of your favorite places in Yerevan so I can put them on my gargantuan to-do/see list. I have all the musts down--Cascade, Opera, Paplovok, puppet theatre, etc.--but have a small understanding of where to seek actual Yerevanian fun. (It does not help that the younger me was really nerdy and spent excessive hours in the museums downtown.)