I started out weighing every morning and every night. Then I realized I was swayed by the numbers, good or bad. So I decided to keep it to once a week. Old habits are hard to break though, so I have hopped on the scale a couple of extra times. If I'm up I get depressed and discouraged. So I have gotten better at using how I feel, how my clothes fit, and how I look in the mirror be used as my "scale".