For handbags/wallets, there are certain lines/styles that are "MFF" -- the easiest way to tell is to look at the price tag. If it just says "Our Price - $XXXX" it is a FP item. A MFF item will say something like "Like Item: --- $XXXX" and then underneath it will say "Our Price --- $ XXXX". Basically, MFF will have two prices listed and FP will only have one.
Having said that, I LOVE the Wellesley line, which is a MFF line. So don't think that just because it is MFF, it is not as good.
For jewelry, there are MFF items that look like their FP counterpart but are missing some feature. The most recent example I can think of is the new slim bangle bracelet -- the FP version can be found at
Nordstrom:
http://shop.nordstrom.com/s/kate-sp...extualcategoryid=0&fashionColor=&resultback=0 The MFF version has the spade on the bracelet, but it's not a hinge. So basically, the MFF version is a regular bangle, while the FP version has the hinge that latches so the bangle opens and closes.
Hope that helps!