Just rechecked my spare wall drawer (one under the bed) and disposed the old and rechecked the "current" ie when I put wallpaper up or tile I always keep a roll or a half roll if its all I have (I shrink wrap open) or couple of tiles (bathroom) SO if anything happens I can replace if needed if it is fesible of course. And put the curtain pole rings (not needed at the moment) into lunch sealable bags in the same drawer. Lightbulbs in there too my spare bits drawer.