My last 2 tips were about observers (#91 Add Observer to Object and #90 Observers Run Once ) and after they were sent out Marten pinged me on twitter and essentially told me that was a bad practice. He also pointed me out to this youtube video, I would recommend watching it – https://www.youtube.com/watch?v=vvZEddrClAQ
I think observers are useful and there are uses for them – if you strongly disagree, then leave a comment and educate me (us).
Marten, thank you for tip 🙂