I emptied my paper shredder at the office and tightly packed 3 oz Dixie cups half full with the shredded paper. I melted candles I picked up cheap at the local Good Will using a double boiler and put about 1.5 oz in each cup. They are ridiculously easy to light and burn about ten minutes. On a cold start I just use old scrap 2X4s cut into 8 to 10 inch length for "kindling" with these fire starters. I put one split on the bottom, one of these fire starters next to it, and lean the 2x4s against the split over the fire starter. Works great. The fire starters are completely burned up before I engage my cat.