...when it comes to discovering gadgets and crap nobody needs but instantly wants as soon as they see it!
http://www.thisiswhyimbroke.com/
A surprising number of them are related to lights/lasers or water[sports]. Also ice-less ice cubes.
...also there is a Reddit http://www.reddit.com/r/ThisIsWhyImBroke/top/?sort=top&t=all
A couple things I can imagine actually buying: http://www.amazon.com/dp/B009Z3RLVY and http://www.amazon.com/dp/B00C3KYKZG (because I'm BATman!)
You aren't the script Gotham wants
you're the script Gotham NEEDS
haha