Here's some pics of a friction-fit assembly system with separate tabs:
I'm swamped at work and home. There's just never enough time to really hammer out an idea before I am exhausted. I'm wondering if I can make simple textured "posts" with friction-fit tabs, so the corners will look a little more polished. I also want to put together some interior walls, add floors, trusses and a roof to this to see how it all goes together.