The following locations will have collection boxes available for properly stamped envelopes until midnight:
- Bear Valley Station, 7555 W. Amherst
- Capitol Hill Station, 1571 Marion St.
- Downtown Station, 951 20th St.
- Glendale Station, 945 Birch St.
- Lakewood Station, 10799 W. Alameda Ave.
- Mile High Station, 450 W. 14th St.
- Montclair Station, 8725 E. 11th Ave.
- North Pecos Station, 1411 Cortez St.
- Northglenn Station, 11887 Washington St.
- South Denver Station, 225 S. Broadway
- Sullivan Station, 8700 E. Jefferson Way
- University Park Station, 3800 Buchtel Blvd.
The Postal Service offered this advice:
- First class postage costs 49 cents for the first ounce
- Add 20 cents for each additional ounce