Umbrella Bags

ご使用後の傘袋は下のダストボックスに入れてください。
ごしようごのかさぶくろはしたのダストボックスにいれてください。
After using the umbrella bag, put it into the dustbox (rubbish bin) below.

These are the bags you put your wet umbrellas in when you go into a shop. I don't know if they recycle the bags or not, but it always strikes me as a waste.

Headphones

音漏れ注意、ヘッドホン・ステレオの音は控えめに。車内マナーにご協力を
おともれちゅうい、ヘッドホン・ステレオのおとはひかえめに。しゃないマナーにごきょうりょくを
Beware of noise leaking, as for headphone and stereo noise, please moderate them. Subway car manners, please cooperate.

I've been on holiday in Australia. There aren't so many Japanese signs there although I did catch a few.