Item #1 on their list is an STP device, I have one, the P-style, and I love it so much. It's great for all occasions, easy to clean, and I have a new hobby thanks to it: I use it in women's restrooms and confuse everyone when I walk out of the stall.
And, no joke, I was shopping for one of those exercise ball chairs this weekend. After some research, I think I'm going to just get the exercise ball, sans chair. Then I can work out with it, too!
I saw that chair and wanted one too! My only problem with using just the ball is that I feel as though I'm going to just fall off of it. Although having a backrest encourages me to just lean against that and not use muscles. Hmmmmm.
i've seen that ball chair before. my mom used to be a teacher, & she had 2 or 3 of those really big exercise balls set up in her classroom around her table (she was a special ed teacher, so she only had a few students at a time). she said that the kids sat up taller, & the 1s w/ severe ADHD would bounce on them & would be able to get their work done more easily b/c they were moving instead of sitting in 1 spot for a long time. so the chair actually makes sense to me.