You can save money on accommodations by riding the overnight bus. Today I’m trying out the premium bus called Relier Dream from Tokyo to Kyoto.
Note that this bus is considered premium and cost around ¥13000 one way. However you can also take less expensive options like a standard bus, which goes for ¥2500-¥3000 one way. For budget travelers I recommend a company called Willer.
AloJapan.com