The first method is to stick drawing paper on the trace on the white wall near the skirting line, and just cut the drawing paper as wide as the skirting line, which is quite nice.

The second method is a trace about one meter from the ground. You can hang some early education pendants to block traces and create a learning environment for children.

The third method is aimed at traces of places that are neither high nor low. At this time, we prepare a bottle of white vinegar and paper towel, pour the white vinegar on the paper towel, then apply a wet paper towel on the trace for about ten minutes, and then wipe it with the paper towel just now, so there will be no trace.