I just read about PlayDate, an interactive device and camera built into a ball that  lets you play with your dog or cat from anywhere in the world, via a mobile phone. The Playdate smart ball can be controlled remotely from an  iOS or Android device after downloading a  free app. Through the app it’s possible to move the ball and also see what’s going on.

I mention this for two reasons:

1. It seems like an interesting product, you might want one.

2. Because it might generate another idea. The principle is that you can put something in a product which can move that product and also  view what’s going on. It can all be done from a phone anywhere in the world.

So how else might you use this?

If you’ve changed jobs a lot, maybe you should stop doing it – or try to disguise the fact.

Researchers sent out fictitious CV’s with varying frequency of job changes, and found that those with fewer changes received a 40–50 percent higher interview rate than those with more. The researchers found that all else being equal, frequent job changes can indicate poorer work attitude to a prospective employer.

If you’re in the job market, what you do with this information is down to you, but in any event, it’s certainly useful to know. You should at least attempt to put a positive spin on any apparent job hopping in your application.