If you get hungry while exploring Akihabara, definitely stop by Gansozushi, a hole-in-the-wall conveyor belt sushi restaurant. There may be a line to get in because the place is quite small, but the wait will definitely be worth it! Each plate of nigiri costs less than 300 JPY (2.02 USD). I highly recommend the torched shrimp nigiri with cream cheese and Japanese mayo. I've never had shrimp so fresh before! You'll also have unlimited water and tea here.

Wear your comfiest shoes when you visit Tokyo DisneySea because this sprawling park has tons to offer. I was there from opening to closing and didn't even get to see the entire place. Definitely be prepared to wait in line because the park is fairly crowded, especially for more well-known rides such as Toy Story Mania! and Tower of Terror. Luckily, you can download the mobile app so you can see a map of all the attractions and the estimated wait times for each one. An underrated ride to try is Aquatopia. If you come during the summer, you're going to get splashed with cool water! 

There's also a variety of eateries to try around the park, so be sure to take a break from walking to enjoy a tiramisu ice cream sandwich or a chai-flavored churro.

Bring an umbrella and a bottle of water if you visit Meiji Shrine! It's a bit of a walk from the entrance gates to the actual shrine, and the heat may get to you. Also, be on the lookout for the Meiji Jingu Consecrated Sake Barrels and the Meiji Jingu Museum on the way. 

Whenever you pass by the towering gates, be sure to take the outer paths instead of going through the middle, which is reserved for deities. By the shrine itself, you can pick up different amulets to keep you safe. I got one for sound mind and body!

A great place to visit in Harajuku is Takeshita Street, a popular tourist spot with loads of food stalls, clothing stores, and gachapon stores, which are filled with vending machines dispensing capsule toys. This is one of the best places I went to in Tokyo. I loved the vibe and all the things to discover! There are so many tasty treats here too, but I recommend trying the candied fruits from Strawberry Fetish and one of the many delicious crepe options from Marion Crêpes.

Tokyo has a great public train system, so expect to be traveling using the JR Yamanote Line a lot! It's best to pick up a Suica card, which you can add more credit to as needed. You can also use it as a payment method for some buses and convenience stores. If you still have credit by the end of your trip, you can return the card to JR East stations and redeem any remaining balance.

Between Harajuku and Shibuya lies Cat Street, which was a great find while I was on a search for vintage stores around Tokyo. This street is lined with secondhand stores selling items from international brands. In the area, you'll also find The Match Tokyo, a popular café with delicious matcha-flavored drinks and ice cream. I highly recommend the frozen matcha latte!

Get a different view of Shibuya Scramble Crossing from Magnet by Shibuya 109. There's a set fee, which includes a drink, to enter the rooftop area overlooking the crossing. Seeing hordes of people cross the busy intersection is definitely a different experience from above. While this place isn't set as high above street level as other options, it's less crowded, so you'll have a better shot at gaining entrance.

The other side of the rooftop is an event place with live music, so you might want to check that out too!

The Ginza district is also a popular shopping area, with huge brands such as Chanel and Lacoste having stores here. You'll also find the 12-story Uniqlo store in Ginza. Among the must-visit floors in this building is the 11th floor, which features many of the brand's collaborations with other companies. The graphic shirts are framed on the walls, making you feel like you're in an art gallery. If you're feeling parched after trying on so many clothes, a coffee shop awaits you on the 12th floor!

Be prepared to do a lot of walking in Tokyo DisneySea! If you get tired, you can take the Electric Railway to certain parts of the park. Also remember to bring cash so you can buy refreshments from the vending machines dotted around.