01.Interesting Examples

Warm up exercise.

Please find two (2) interesting examples that relate to the topic of Happy Healthy Home. Please include in your post:  What makes them great  (or not) ?  What makes them examples of Happy Healthy Home?  (or not)?  What are their principal characteristics or features?  Who made them and why?  How do they work?  etc.   Please be prepared to explain and discuss.

Please add your example as a blog “post” (not a comment).  Select “01. Interesting Examples” as the category for your post.