Remove wax drops from carpet
If you ever turn a candle or the wax drips on the carpet, then you can also use instead of "blotting paper" just coffee filters. Carefully remove the wax carefully with a household knife or similar flat object.
Spread the filter over a large area and, if necessary, in several layers, hold the iron for a few seconds and the wax is gone. If necessary, repeat with a new filter so that the iron does not mess up and your shirts do not get the wax when ironing.