I buy a couple pairs at Walmart and then wear the jeans several days in a row before washing them. Unless you sweat like crazy, I never smell nor look dirty.
Start date: Sept. 2013 at 216lbs
End date: whatever weight gives me a flat stomach. I'm apple-shaped.
216: size 16 jeans, XL shirts
185: size 14
170: size 12, L shirts
165: size 10
159: size 8, M shirts
150: size 6
140: size 4 (can't find anything smaller in womens)
130: size 5 (juniors)
*Note: these are the sizes I usually fit when I try on things at Walmart/Kohls/JCPenny/Sears etc. ALL of them practice vanity sizing.