How does the blue USPS box work? A while ago, I shipped a small package and it cost like $6, but it was less than 13 oz. So could I have just
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Mystery as Nottingham city centre post box changes from traditional red to blue - Nottinghamshire Live
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Edinburgh receives blue post box celebrating NHS heroes as Royal Mail unveils colourful tribute to health workers - Edinburgh Live
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US Postal Service cautions Northeast Ohio residents to only use blue mailboxes during business hours | Ideastream Public Media
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