To remove soot from votive candle glasses, pour in a little bleach and fill with water. Soak for 24 hours. The soot can then be wiped out with a damp paper towel.
To remove candle wax from carpeting, set an iron on low. Cover the area of the carpet with paper towel, and iron through the paper towel to melt the wax into the paper towel. This can also be used on altar cloths, robes, etc. Warning: The dyes from colored wax will remain in the fibers--only the wax will be removed.