Eugene ‘thirtytwoteeth’ Andruszczenko (of Game Boy Zero – Handheld Edition fame) posted a neat idea to help your Raspberry Pi Zero take jumper wires without soldering. He threaded fishing line through the 40 hole header, making an interference fit for male header pins. I tried it with 0.38 mm Trilene, which worked rather well.
If you’re trying to change the header image, and the old image seems to be stuck, make sure you turn off WordPress Super Cache before you change the image. Before you restart the plugin, make sure you delete cached files, or the old header will come back and haunt you.