Just thought I'd post an update. I'm down 5 sizes since my weight loss surgery! Woo-hoo!
I was at a Liz Claiborne outlet store the other day and I almost started crying when I started trying on some pants that fit me perfectly. I was so big before the surgery I couldn't even shop at Lane Bryant anymore. I had to order from catalogs or go to Fashion Bug which had bigger sizes, but hardly any work clothes. Now I can shop at regular stores with big sizes. There was a brown pantsuit at Liz Caliborne that I almost bought. Before, I would just buy anything that even sort of fit me, regardless of what it looked like. Now, I decide whether I really like it. I didn't like the color, even though it really was a steal at under $50.
I've been dropping a size about every 2 weeks right now. I love it, but it's getting kind of expensive. I get everything on sale, but it's still adding up.
One of my biggest problem areas is my stomach. I have a huge fold above my belly and one below it. I'm still so big that I really can't do a proper sit up. Does anyone have any suggestions on exercise that focuses on that area?
I still don't have a scale, so I'm waiting until my next doc's visit in February to find out exactly how much, but I think it's a lot. I've been really happy about this proceedure so far.

I honestly didn't think I could get into a smaller size and when I did, I was on cloud 9!

And as JiffyPop says, at least you don't have to get on the floor...I hear you on the knee cartiledge issue- I basically have none on the back of my one kneecap from all the times it dislocated before they realised I had torn a muscle that helps hold it in place. ALso, for the exercise ball, if you're intimidated to go straight to the round one, even WalMart sells the capsule ones now for under $15. To me, they look like peanuts in the shell- two bulges on each end with a little valley inbetween. They're great for beginers since you only worry about rolling back & forth, not every which dirrection.