10 Things You Buy are Getting More Expensive Shortages, booming demand are driving prices higher and sparking inflation fears by John Waggoner, AARP, May 13, 2021 | Comments: Getty Images If you've bought gas, a car or a BLT from Joe's recently, you already know that prices are rising. The consumer price index (CPI), the government's main gauge of inflation, jumped 0.8 percent in April and 4.2 percent over the past year. It's the largest 12-month increase since the period ending September 2008. Low supply and high demand have combined to drive up prices on a variety of goods. Here...