I only used paper for the first two plan drawings. Even when just being on paper, some issues came up in that stage and saved me a lot of grief later on. I spends several weeks rearranging my house this way.
This was the first drawing during breakfast
This is the final plan so far (yep, it might still change!). I switched to my iPad Air at this point to make editing and sharing easier from a digital format.
For the windows, I had to get some elevations:
I love drawing and this was super fun!