I have SPG, Amex platinum, Chase Sapphire Preferred, Citi AA executive, Hilton Reserve and Hyatt credit card. I am trying to go to Europe this summer and need about 250,000 points for roundtrip first class for 2. What do you recommend is the fastest and easiest way for accumulating points for this? I don't want to sign up for more credit cards and I don't have a lot of time to go do the manufactured spending.