Chelsea and her team used two types of cleaning method ... solvent gel to the giant sequoia to draw the old varnish out The team then applied a special solvent gel to the surface that is on display.

To get more insight, we consulted experts Jessica Ek from the American Cleaning Institute and Marla Mock, president of Molly Maid, for some sponge sanitizing ... invest in a giant pack of sponges ...

Everyone loves to use a shiny new cleaning sponge or brush ... Being eager to clean up after you've just baked a giant batch of chocolate chip cookies is understandable, but patience is key.