At my highest weight, my favorite skirt was a size 18 and it was somewhat snug at the waist. Now I wear the same style of skirt, but it's a 14 and fits just right at the waist.
All my tops were knits, so they varied between 1X and 2X. I haven't lost much at all in my chest, so I still wear an XL top most of the time--but I wore Ls when I weighed 125 pounds because of "the girls." I don't think that's ever going to change.
I took pictures of the size 18 skirt and how it hangs now (if you look up the pics, it's the skirt that I'm pulling away from my waist).