I can be long, or I can be short. I can be grown, and I can be bought. I can be painted, or left bare. I can be round, or square. What am I?
I warn you about meetings, and I assist you in your life, I can help you do most of your work, unless I have a bug. What am I?
Without a bridle, or a saddle, across a thing I ride astraddle. And those I ride, by help of me, though almost blind, are made to see. What am I?