Yep, I agree re: the 5 pounds.
If you're trying to get below those five pounds, I see how it's frustrating though! I was there for a bit, recently broke through it I hope.
Just added something new to my routine (have been doing the 4X/week thing regularly, scrounging up childcare where I can find it -- a camp sozlet was supposed to go to was canceled, which didn't help). Instead of doing walking intervals, I changed to running intervals today. That is, I ran the whole time but went faster and slower. Seemed to go pretty well.
Yay to the running folks above. Some impressive muscles there.