So much this. If you don't have many credit cards I would highly recommend going out and getting a few right now. I went from $0 to $30,000 in available credit in a month, and my score jumped 100 points. The offers are crazy. It's standard these days to get 0% for 18 months, no fee, and 50,000 bonus points. They are literally paying you $500 to use their card for a year at 0%. As long as you're smart enough to never carry a balance it's literally free money. I've made over $1000 in bonuses this year on top of cash back, just by rotating my regular daily spending over 3 different new cards.