When I get in the slump, sometimes it's helped just to keep a record of my weight on a daily basis. It's amazing how it creeps up, particularly if you drink a beer or something that causes water retention. Then it's a kick in the butt and I get back in the rhythm of going. It's really rhythm, it starts the day. What I have a hard time identifying, personally, is what starts the stay in the sack issue. I would avoid it if I could identify what sets it off.
Ten pounds is a really large loss for a month unless there's a big water component. One other consideration if total body weight is your issue. You also could use a waist measurement as a goal too--one inch loss, or about one belt notch=reward. With a heavy weight workout as part of your gym routine waist measurement can be a more accurate guide of your gain since muscle weighs substantially more than fat. If you're losing the gut and side handles, it's a better measure of your progress.
