Here are my 3 block model kitchen objects. Was forced to remember a lot of handy tools like Remove Doubles and Proportional editing not to mention join, duplicate, subdivide, ring (loop) cut, loop select, etc.
I did have some difficulty with adding the subdivision surface to the pyrex measuring cup -even though I had removed double, I still have some artifact. I decided we’ll probably learn later what I did wrong, but to my eyes, the normals all seemed fine. There was some funny business happening after the subdivide command (faces with two normals, etc) but I thought I successfully removed any coplaner faces with remove doubles or manually pulling a point here or there to expose the underlying face then replacing the point to its original location.

