Best way to save money on LL tickets?

[Amy and kids]

My family is taking our first trip to DL in April and we were planning to do KBF but after reading the reviews on here I think our better bet would be LL. We have two young boys 6 and 4 so that makes more sense anyway. The price difference between the two is quite a bit though so I was wondering what is the best way to get 5 tickets for the cheapest price. I have learned about Brickmaster and the $8 off coupon, but I'm trying to figure out what way to work those in and save the most money. Thank you!