I'm a big fan of "optimize for deletion" (aka leaf-heavy) code. It's good for reasoning when the system is big, and it's good for growing a code base. It's a b

I'm a big fan of "optimize for deletion" (aka leaf-heavy) code. It's good for reasoning when the system is big, and it's good for growing a code base. It's a bit annoying how the design of Django templates works against this by not allowing free functions...