in reply to This year I plan to learn about:
non-Perl: Andy Ford
Toddler psychology & discipline
Having survived the toddler stage (my children are 17 and 20 years old), I've got to say:
At that time  the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.
Two words: classical conditioning.
Conway's Game of Life
Perl regular expressions
My Magic 8-Ball™
Results (192 votes). Check out past polls.