Drawing program, simple and cheap or free?
I've been doing a ton of 6" blocks and about half of them are from photos a lot of time is spent with graph paper which is quite enjoyable.
I'd like to step up to a computer drawing program (I just received the book of 5500 blocks!) so I can make changes without having to erase or start another copy.
The program need not be "professional", mostly straight lines and diagonals.
Thanks for any suggestions!