Whilst most people reach for biro when needed to take a note, while I reach for a fountain pen.
Most people would consider a fountain pen and out dated piece of technology. I did not enjoy writing while at school, and it was only in my final years I discovered the enjoyment of writing with a fountain pen.
My handwriting has never been good, but I found that using a fountain pen slowed me down, I think more as I write and concentrate more, so my handwriting improved.
I will say if you think a fountain pen will improve your handwriting then you may be in for a shock, it takes care and practice, but for me its been worthwhile.
In the picture at the top is a simple Waterman Hemisphere with a medium steel nib. A simple pen to carry with a notebook, hardy and sturdy.