Spending protocol (24 hours rule) & changing my mind

I am implementing the urge jar program for spending money. I set a plan 24 hours in advance of what I will spend, and then write down what I actually spent, etc.

My question is that yesterday I decided that I would buy two domains. Today, when I went to buy them, I decided I didn’t want one of them. Would you recommend that I buy what I planned and not alter the plan in the moment like that? I am thinking about it with food, like if I planned to eat a cookie and then in the moment decided I didn’t want it. Would that be still on program?