#37) Add credit card logos, shipping logos, and/or trust badges to the footer

Typically these appear on the right side. If you also have a section with those logos on the homepage, you can optionally omit them on the homepage footer. See best practice #36. Most sites that have logos and badges put them in the footer or right above the footer.

#38) Add key contact information to the footer

Contact information can include your phone, email, and social media.