there are a couple of shirts on ebay i'd like to get but i can't figure out how to measure one of my shirts to see if they match up to the measurements of the shirts on ebay. has anyone here had any good luck using home measurements in such matters? i find that i get different measurements depends on if i stretch the shirt a little more or less or or if i used the front seam or the back seam or if the sleeve of the shirt is blousie or not. sheesh. and then, online, you never know how the sellers are doing their own measuring. anyone here figured this thing out?