Alternately, if you need to deep-clean your Macbook keyboard and want to remove the keys, this technique may be useful.
Step 1: Overview
1. pop keycaps
2. remove from wire
3. reorder keys
4. reattach wire
5. push key into place
It took me about 45m from start to finish. I found it easiest to do each the steps a row at a time, (ie remove the bottom row, then order the bottom row, remove the middle row, then reorder, etc). If you're not switching tasks, you can really get cranking.
In the photo, the wires are lifted in order to replace the keycaps, a row at a time.