weighing vs measuring

It is about the same. Sizes however don't fluctuate as much as weight does I think. I weigh myself every day (I know most experts advise against this, but its what works for me), and weight fluctuates sometimes over 2lbs a day for no aparent reason.
Whatever you use though you should not pay too much attention to sudden variations, these are more likely associated with other factors rather then fat or increase in body mass. Make sure you follow a good nutritional and exercise plan that works for you and keep to it despite what you see on the scale or tape, if you do, I'm sure you'll see results.

I mesured before doing the 30 Day Shred. After I completed I measured again and saw a loss :0) Don't know if it helps but it's a start. I wish I had measured from the begining of my journey. After over 85 pds lost I know many inchs were :0) Best of luck to you!

i think its different for everyone, i never really measured myself... I should have but I never quite figured out how to do it correctly)... But it took months before I would drop sizes in pants. I believe that it took me a little more than 7 months to get to size 8 pants from size 12. (I don't remember how long it took me to get to size 10 and I didnt take pictures of me between march 2009 to may 2009 (may i took pics and i was in size 8 shorts at the time but the pants were still tight on me), October of the same year I was in size 8 jeans for good. By November 2009 I was in size 6 jeans!!! . May 2011 (this year) I finally got into size 4 shorts and I do fit in size 4 pants, but I don't have enough to wear all the time, and they were still a little snug the last time I tried them on, so I'll see how they feel soon! CAN'T WAIT!

I check my weight everyday also (or I try to... some days I am unable to check weight)... The poster above me is right... I lost motivation in 2010 to lose more weight, and I ended up gaining 2 lbs back, but because I occassionally checked weight, I was able to keep off the 22.3 lbs that I had lost the year before (total 24.3 lbs but i gained 2 lbs back). It really does help to check weight everyday!!!!!!!

I use a tape measure bimonthly. Since March I have been stuck at 140 but I dropped 3 inches from my waist and 2 inch from hips and another inch in the thighs. It's a good record to keep but if you are easily discouraged by not seeing a physical number change I would skip it or only do it monthly.