Pets are great! Pet hair in everything you own is not so great. After recently receiving a Pogoplug with all of it's bounty of usb ports, I thought it would be silly to leave them to fill with dust and dog hair. I made this simple insert to help keep dirt, dust, and dog hair out of the socket.

Print, trim if necessary, insert into an available usb socket. This was designed to fit my Pogoplug but you can adjust it with the attached openscad file.

This fits perfectly for me but must be removed with a scewdriver or some other thin object. I suggest not doing this with the device plugged in.