Oh I'm in the same boat.
We finally got to painting my son's old room (now that we know he won't be coming back to live in Ohio
) so I wanted a very pretty pale yellow for this room, so I picked out this color called Lemon Yellow and from the paint sample we had it was so pretty. Well.....once we got it on it was this bright, neon yellow.
OMG you need sunglasses to walk in that room.
Needless to say we will be redoing that room but not now that's for sure since my husband is pooped from this.