I am happy to cheer you on, but I won't join you, LOL! I've finally reached a good equilibrium with spending wisely and am happy with it. But it took several spending freezes for me to get to this healthier place.
One thing that helped me during my spending freezes was to simply not set foot in a craft store or click on a link for an online store. Not looking reduces the temptation significantly.
Another was shopping in my craft room. If I saw something in a mag or the gallery here that I wanted, I looked through my own stash and tried to duplicate it as much as I could. Not only did this really help my creativity, it was a fun challenge! Plus, it almost always resulted in my getting the same or BETTER look as the thing that I wanted to buy. Very educational!
Best wishes to you and anyone else taking up this challenge!