We were very good! The only thing not on sale was my two desperately needed nursing bras, but they were still under $25 each. Just like a grocery store, I went in with a list and did not have the intention to buy anything that was not on that list.
We got our memory foam mattress pad on sale, but it was still just over $100. I felt OK about spending that because our mattress was only $150 and most mattress sets are over $500. It's SOO comfortable! I didn't feel so achy and sore when I woke up after two nights sleeping on it. I also got my needed socks and the wedding gift for our friends in the UK. This was a very high month for our spending, but nothing we bought was frivolous or unneeded.