Personally, I say weigh yourself often or not at all (or at least rarely). If you weigh yourself every day you see how your weight will fluctuate from day to day. You will especially notice fluctuations if you get on the scales at different times of the day. If you understand that your weight will fluctuate, you will not get discouraged if you get on the scales one day and you have not lost or you have even gained. What is important is that over time, on average, you see a downward trend. What is even more important is that you feel better and are losing inches so don't let some just because the scales give you some number that is higher than you'd like. Remember, it is just a number.