I spent only on grocery shopping days (4 days of the month) and one other day when I went to the hardware store, if I'm remembering correctly, so I came in at 23 no spend days in February. It really makes a huge difference in the bank balance to consciously limit spending.
I have to say that this month having simply horrible weather helped. There was no incentive to get out of the car at a store when it was either freezing cold or pouring down rain in buckets every day.