Hi,
The authors of Carbohydrate Addict's Diet had a good idea. What the good Dr.'s said in their first book they suggested you weigh everyday at the end of the week average out the weight and take that number such as:
Mon-151 Tues-152 Wed-151 Thurs-152 Fri-150 Sat-149 Sun-150
Average weight for the week: 151
Pat S.