Last week, refinance applications were up 20% from a week earlier. The number of people who could benefit from refinancing \u2014\xa0especially those who took out mortgages with interest rates in the high 6% to 7% range \u2014 has been growing over the last few weeks, but not everyone is making the jump. Plus, OpenAI looks to switch from a nonprofit to for-profit entity, and buy now, pay later is expected to surge this year.