Another tip: This past week, the posts most likely to win were posts talking about other people's entries in the challenge or a member's own entry into the challenge.
Telling people how you got your TOANZ is super helpful and so it gets likes. And being supportive of other people's challenge entries definitely gets likes! @domhatch you'd have won this week 😉
So even without entering a challenge, you can win. You just need to support the members that do.