We spotted this landing strip idea on a visit to a house for sale, and thought we'd share. The dirt from the soles of shoes can filter down to the bottom of the tray, out of sight and danger of tracking throughout the house. While this family used it for kids shoes, we think this is a great idea for all ages.
The solution is part of a shoe nook area by the door. If we were to copy it we might have fun with the tray, using glass or patterned melamine instead of the very utilitarian plastic option.