From the USPS site:
Have a coffee or tip the scales https://www.uspssmartbusiness.com/Ca...No=24893®no=
If you have used USPS Click N Ship, ordered stamps online, or used their free package pickup you can get either a $5.00 Starbucks card or a set of stack and weigh scales. You do not need to enter your account#, but you will need to provide a confirmation number from a transaction you've made.
$5 starbucks from USPS
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