How often should I weigh and measure myself?

Depends a lot on what kinda person you are.

1-2lb loses actually demotivate me; busting my *kitten* for 7 days and losing 1lb? Pass the cake!
So I wait and weigh once a month; that way I only ever see around 10lb of loss each time, a lot more motivational for the loss-greedy like me. :drinker:

- The only downside to this method is that you cannot really focus on loss as closely, so if after a month I've only lost a tiny bit, I can't pinpoint the exact week that I went wrong.

i use to do every week but since the body fluctuates so much in weight I stopped because like erulasse says, it demotivates you, I switched it to once a month along with measuring. that way I can focus more on being healthy, if i weigh every week I focus too much on the number and often get very down on myself. just log everything and you should be able to go back and see where you went wrong.

I recommend daily weigh-ins, with a huge caveat: you need to do some math to find the difference between your actual weight loss and the daily fluctuations, which are much larger.

Your weight fluctuates depending on water, salt, and fiber intake, and other factors having nothing to do with calories. Using an exponentially weighted average can help you filter out the noise and focus on the trend, as John Walker explains in "The Hacker's Diet" (http://www.fourmilab.ch/hackdiet/e4/). The chapter on "The Rubber Bag" explains, briefly, the source of these fluctuations. The chapter on "Signal and Noise" explains how some simple math can filter them out. Walker explains how to do the math, but you can also set up a free account on his server to do it for you, or use a service like Beeminder or TrendWeight.com.

If you're going to be all "OMG! I'm bloated!" if you see the number go up by 2 lbs. from one day to the next, then daily weigh-ins aren't for you. Personally, I'm not bothered, because it's the trend that matters. I find it reassuring to see that my trend is still going down even when I weigh 1.5 lb. more than the previous morning. And it's instructive to see what eating out at a restaurant does to my weight, even when I stay at my calorie goal: usually my weight goes up, presumably because of the sodium.

I weigh myself about every other day. My minimum is twice per week. If I give myself too much time (once per week), I may binge because I have time before I need to weigh in. Weighing in constantly doesn't give me time to screw up or make excuses. That's just me.

As for measuring, I measured myself once at the beginning and I won't measure myself again until I get to my goal weight.

As often as you like.

Experiment, find out what works for you and then do that.

I personally weigh almost every day, as much out of habit as anything else.

I went years without stepping on a scale. When I recommitted to losing weight I started tracking my weight again. I started logging once per week, but eventually went overboard and started weighing myself everyday, several times a day.

I hated being a slave to the scale so I hopped off it and haven't gotten on one in about 5 months. I've only measured once in that time, my waist. I go by the mirror now, how I feel, and two pairs of old jeans from when I was thinner.

Since my goal is now smaller than I ever was, I decided to step on the scale again when my smallest, back-in-the-day jeans are loose on me. I like a good surprise, so I know that seeing my new weight is going to represent an enormous loss.

Everyday in the morning I weigh myself. Measurements every two weeks. Works very well for me.