(MONEY Magazine) – » On June 30 federal student-loan interest rates are going up--a lot. But if you move fast, you can save. Rates on Stafford and PLUS (Parent Loan for Undergraduate Students) loans are set each summer according to the yield on the three-month Treasury bill. Over the past year, the yield on the T-bill has risen nearly two percentage points. If you consolidate your loans now, though, you can lock in current record-low rates : 3.37% for Stafford and 4.25% for PLUS loans. Check with your lender, or visit smartloan.com or loanconsolidation.ed.gov. --T.K.