Sign up now to earn one extra point per dollar spent for the next month! (pointsmilesandmore.com)
Usually, you'll get somewhere between two and 10 extra points per dollar spent, which makes racking up a huge bill seem super lucrative. (thesimpledollar.com)
Stock up on gift cards at stores where there is a category bonus and then log onto your airline shopping portal to use them where you'll earn extra points per dollar spent through the portal. (creditcards.com)