Just this month, an estimated 18.5 million honorably discharged U.S. military veterans became eligible for a tax-free shopping option that should give them an opportunity to save some money.

A change in Department of Defense policy allows those veterans to shop online at military exchanges. The websites are a modern version of the Post Exchange and Base Exchange stores that military veterans are sure to remember.

Thousands of on-base stores still exist, but most veterans can only shop the exchanges online. Different rules apply for 100 percent service-disabled veterans, who already had shopping access. …

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