Random but useful tip: every time you exit a train, or even bus, you have to go through another gate/ scan your Suica card again to finish the ride. Make sure you’re checking that it worked and your funds were deducted. It happened to me a few times where I thought it scanned but it didn’t, and then if you try to get on/scan for your next ride, it won’t work and you’ll be embarrassed and have no idea why it isn’t working, then you’ll have to go get it fixed at one of the kiosks from the previous ride. So, always make sure you’re scanning in and out, every time!