Reading labels: The green washing of labels can give impressions that foods are produced (and packaged) with "sustainable" practices when minimum standards are used. How local is the product purchased? and other questions are good to ask oneself.
In some ways, we live in a throw-a-way culture and many items are a one use type product and includes clothing, appliances and many household items.
Donating goods for reuse and purchasing items from thrift stores, up cycling/repair a well used items are always terrific ideas. Consider how you can lessen your impact through these means.
However, items are left it at a drop off site and then we drive off not thinking of it again. Research organizations that will utilize your donations with best practices. Separate donation items (such as e-waste) to organizations that will properly rebuild, reuse, or dispose of the donated item.
Taking part in this challenge is helping me put some good thoughts into action. I find inspiration in others participation as well. Seeing ourselves connected to the whole is a big step to conserving and sharing resources.