Originally Posted by
Himeno
...
On the 17th, I got into the city from NRT around 10am and couldn't get into where I was staying in Shibuya until after 3pm. I went to put my bags into a locker in Tokyo Station to find them all full and ended up holding on to them all day. ...
For future reference - although most hotels won't let you check in early, many will let you leave your luggage with them until you
can check in. That at least gets your luggage out of your hands while you explore the city before checking in.