useful
有 · 6 strokes
Depicts a hand (又) holding meat (肉). In Oracle script this character was written the same as the phonetically similar 又, but later the 肉 component was added to distinguish them.
用 · 5 strokes
Depicts a bucket with a handle on the right side. Based on the original meaning "bucket". The meaning of this character has shifted over time and now means "use".