Check out the Marriott Promotions going on. The current Megabonus promotion can net someone as many as 50K points alone. There are different versions of the Megabonus promo that Marriott sent out, but as a Gold you can call MR and request a specific promo. I was given the 5K points for every 2nd stay, upto 25K points. I called and had them put me in the 50K version. ^

Also, depending on where you stay, there are bonus points for weekend stays, bonus points for hosting a meeting at a Marriott, etc. Check out Marriott's website to see what promos they have. Another way to get more points is to use a Marriott branded Visa card. If you aren't doing that, you are missing out another 5 pts/$ spent.