Moments and diaper pricing

It is moments like this, when Thor crashes on me, content with a full belly and a warm lap to snuggle on, which remind me that  everything else is worth it.  There is something entirely sweet and serene about a happy, sleeping baby. He likes sleeping on me, because I unintentionally bounce. I have no idea how I will ever get him to sleep in his crib.

I'm using his nap time to look up cheap diapers online. I'm playing on the computer while holding my baby! Does that make me a bad mommy?I've recently started keeping track of how many diapers we go through a day and it's about 21. Therefore finding cheap diapers is very important to me. I've tried so many brands of diapers and cannot decide on one. He seems fine in all, but the Huggies lil movers, but I think they just run small. Let me just say this, despite Huggies having the most expensive and smallest diapers, they have excellent customer service. Both times I complained or offered constructive criticism, they sent me coupons for a free pack of diapers. Their Snug and Dry diapers are even normal sized, so that's a plus. Unfortunately, they are so expensive I can only buy them if they are on sale and I can stack coupons.
As for the cheaper brands, there are Luvs and store brands. So far, my favorite diaper has been Parent's Choice, the Walmart brand, but recently they changed their design and now are more similar to other brands. They used to run a bit bigger than other brands, but I'm not sure these new ones do. Last I checked, Luvs still ran a bit bigger though. In a pinch, Kroger has their brand diapers for 5 bucks a pack. They run a bit small, but not as small as Huggies. Target brand is also great so far, very soft, cute polka dots, and, when purchased in the largest boxes, they are the second cheapest I've found. The very cheapest is the fisher price kind, which is much cheaper if you buy it using the 20% Amazon Mom subscribe and save discount. I'm still testing this brand though, so I'm not positive if I like them enough yet. They are very cute though. http://www.amazon.com/Fisher-Price-Happy-Nights-Diapers-Value/dp/B002Q0WQ18/ref=sr_1_1?ie=UTF8&qid=1320799903&sr=8-1
And free shipping with Amazon mom!!!!

So any cheap diaper tips, let me know!!!!