@arbitrarykitten, I love the advice. I think that others need to hear this advice.
If I could summarize your message in one word I would say, "restraint".
We need to hold back from thinking that we deserve our wants and focus more on meeting our needs. Great message!
That's a difficult one. I believe you should feel you deserve to want for things, but if you're only letting your emotions rule your pocketbook, then those wants will spin out of hand to where you're "wanting" thinks you'd never normally want had you not been a victim of consumerism advertising...