Refresher course (3)

Here are two more refreshed posts for you:

1. Spin-a-yarn: Click on the title to go to the post. The original one was titled Story Behind a Picture and has been kept as it is below the new version.

2. From fat to slim (4): exercising: Click on the title to go to the post. Unlike my other posts where content was inadequate, here it was in plenty and so I decided to modify it.