You should watch some of engineerguy's videos on youtube: https://www.youtube.com/user/engineerguyvideo/videos https://www.youtube.com/user/engineerguyvideo/vid

You should watch some of engineerguy's videos on youtube: https://www.youtube.com/user/engineerguyvideo/videos https://www.youtube.com/user/engineerguyvideo/videos. He goes over some of these small details in products and why they are there. It's quite interesting!