lol what ya need is a bank manager someone who you have to agree all purchases with, now this is a good idea but when you have shinyitus real bad also your worst thing to have.
Picture the frustration
I have seen this you say is it ok to clear a purchasing order for said item.
Errrr no it looks very similar to the others you have and what makes this one different?
Now the above although good for limiting spending may also lead to another problem that on doing research goes hand in hand with shinyitus that is deception, getting to the posty first (otherwise known as stalking the postman), various forms of trickery and also smoke screens (buying something for the manager to stear them away from your purchase).
So all in all id say good luck and may the shineys soon be with you