Where do i take my shoes off when entering a japanese house?

Try on a mat in the doorway...there should be an area where you can do this inside somewhere from what I understand.Where do i take my shoes off when entering a japanese house?
tradition/respectful in culture. i think it originated from keeping your hosts house cleanWhere do i take my shoes off when entering a japanese house?
you take it off BEFORE entering the home, if they don't have a designated area for you to take them off.
um @ the door i think :) x