I'd like to join in too. I have struggled over the last few weeks and haven't been sticking to the plan. Need this challenge to get me back on track. Will go for 21lbs too.
Gonnagetskinny 21lbs - 21lbs to go
Beki 14lbs - 11.5 lbs to go (2.5 off to date)
jojosing 14lbs-14lbs to go
Victorial85...