Thanks for all the additional advice. These different perspectives are very helpful. I should have said that part of this latest poor handwriting incident was my fault. The project involved describing something in words and picture, so I figured unlined paper would work so he could have the picture on the same page. (Although lined paper wouldn't have corrected the missing spaces between words...)

My plan is to chip away at this a bit every day. Anyone have success with particular paper/pencils?