I also do the baking soda and vinegar. As soon as Reesie has an accident I pour baking soda on the spot. I pour enough to soak up the urine and then I pour a little bit more. A cup is a good starting point though. I let that sit for about 15 min or so and then take a broom and sweep it into a dust pan. Then I pour vinegar on the spot and let that sit for about 15 min and then get a towel to soak up the vinegar. It works every time and I have no urine smell. Cheap and effective!