Don't Hard bingo unless they really annoy you, as hard bingos can be used as excuses to do nasty things to your village.
Do a village action (collect, patrol, etc.) every day even if you're not going to play through your stamina as all kages love active villagers.
Be patient. You might fail one mission forever, never get an ally you need even though you've done the mission thirty times, or it just seems like you hit a wall in progression. Patience and persistence will see you through.
Certain permanent items and themes are harder to get than others, and can involve more hair-pulling and randomness than other perms that could be considered of equal value. If you get them on the first try, people will be jealous, envious, angry, or all of the above. They just weren't as lucky as you, you lucky bastard.
Don't complain to the game creator unless you think something could be improved or you think it is a bug. If you think it's a bug, first run it by the bug forum in the game's attached forum. Bug reporting random stuff without thinking can have repercussions.