8 mistakes to avoid if you want the 100,000-point Chase Sapphire Preferred offer

As you may have seen, Chase recently told us that the best Chase Sapphire Preferred® Card (see rates and fees) offer we’ve seen in four years is ending soon. With 100,000 Ultimate Rewards bonus points on the line — and no way to know if Chase will take another four-year break (or longer?!) before they …