Buy great loot and cross each tier to win free Skill Points for the entire family. The more tiers you cross, the more free Skill Points you win. The counter will rise each time an item is bought by a member of your family. After you cross the 4th tier, your counter will be reset and you can start again. On August 8, 2012 the tier threshold and skill point rewards were revised. The 4 tiers are now 50, 150, 250 & 400, offering skill point bonuses of 1, 2, 4 & 5 respectively.