What tool do you find the most interesting to date?

At first I hated the pen tool, I thought it was complicated and took a lot of time but since I have been using the pen tool so often of recently, I realized that I actually find it very convenient. I think the pen tool is the most interesting tool because there is just so much that can be done with it. It is versatile which enables me to create/ trace many different parts of an object while using one tool. I can get circles, semi circles. lines, squares, basically anything that has a shape or form can be recreated using the pen tool but as I stated before it can be a bit difficult. This tool is also very interesting for me because it actually thought me a life lesson, everything in life is as difficult as the amount of work you out into it, the least work the least progress, the more work the more progress.