I am new and wonder how I can quickly earn points
Credit Cards is the easiest route (if you are US based). There are signup bonuses currently at 80k MR points.
Marriott Rewards Credit Card | Chase.com
Check out this discussion for more ideas.
What's Your Strategy for Maximizing Nights and Points?
The Chase Card VIsa with the Marriott Rewards logo is the quickest no matter where you spend.
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