Write out everything you have planned or constitutes your idea with samples if possible, store appropriately for transport in a box or package, have it notarized if possible (might be a tall order for a Sunday) take to post office, send registered mail to yourself with postage clearly sealing the package. DO NOT OPEN THE PACKAGE WHEN IT ARRIVES BACK TO YOU. Only open at court or other proceedings to prove your idea 💡🤙🏻 ⚡️