Do you think that it is necessary to be tidy?

Yes, I think it is necessary to be tidy to some extent. Being tidy helps you work better and keeps things clean. But I don't think you need to be perfect all the time; a bit of mess is OK.

I think being reasonably tidy is important because it boosts productivity and reduces stress — you're less likely to lose things and more likely to concentrate. However, there's also room for personal style: some people do their best work in a bit of creative chaos, so it's not absolute. The key is finding a balance that works for you.