How to Regrow Romaine Lettuce From Scraps

I love the idea of container gardening, but with my recent failures I've been a little discouraged.  I hadn't been going out of my way to plant or start anything new. Until I fed my rabbit the last leaves from the head of Romaine. Normally I just throw the stump in the bowl with the leaves and she eats it, but I figured, what the heck, I'll give this regrowing thing a try. 

Step 1: Gather materials.  You'll need the stump of your Romaine and a small container. Easy!

Step 2: Place the stump in the container and add water.  I put this stump in its container on 1/30.

Step 4:  Put your plant in a sunny window and wait.  I didn't get my hopes up too high when I started.  I just made sure that there was fresh water in the container every day.  I wasn't even paying attention to any growth.  Then I left for the weekend and when I returned (2/14)....

Look at those cute little leaves! 

Can you spot the itty-bitty baby leaves?

Two more little leaves have sprouted on the other side, too!

 My confidence is restored, and I'm looking forward to watching this little plant grow.  And as always, any tips or tricks are welcome.