Potty Training = Nightmare

Have you ever taken on a huge project, done the research, did all the tasks assigned to you, spent hours working through every step - only to have the project returned to you as if you had never even started, when you thought you were finished?

That's what potty training has been like for us.  Over and over and over.  I read the three day potty training method.  I bought charts and stickers.  I bought potty treats and an Elmo book about going to the potty.  I read books to him every night about going to the potty, encouraged him, and even established a "potty cheer" for when he would successfully go potty.  We were even able to take him out INTO THE WORLD without a diaper a few times. 

We were set.  Successful.  And nothing could stop us now. 

Until... regression.  I hate regression.  It's a cruel trick - a joke of Mother Nature.  It happens with every big, exciting child milestone.  Sleep, eating, potty training, even talking sometimes.  (we went through a period of time when Nathan started talking like a baby because of the baby, which is totally normal, but pretty irritating when your toddler usually talks in complete paragraphs!) 

But the potty training regression is pretty much the worst.  He's going on the floor again.  On the walls.  On the doors.  Everywhere but the potty. 

Any tips and tricks would be appreciated.  This mommy is at the end of her rope!