i was working on my pc build, and i decided to chose a cheap simple and useful way to create more light in my case. Most foil tapes i saw started at around $9-$15, and im on a small budget. so this is what i rounded up from the dollar store. 1. aluminum foil 2. rubber cement Grand Total= $2.25 the good thing about this was that i also needed aluminum foil for kitchen use. Pretty elementary steps: Rip the foil to the size needed, heavily apply the rubber cement to the center of the dull side of the foil, and slightly wet amount of cement along the edges and corner. Flip this over and smooth it out. It turned out very effective since i just lined the whole inside of my PC with it, and it drys pretty fast, i would still give it a day before use.