An Ignoramus in Japan: Bathrooms and Toilets

I am not a caveman. I do not poop in a hole nor wipe by butt with a leaf. I know what a bathroom, a shower, a faucet, a bathtub, and a toilet are. But stepping into a bath/bathroom/toilet in Japan makes me feel like a caveman.
Ofuro (Japanese Bath)
When my friends and I booked at Goyomon, a minshuku in Ainokura, we were told that the minshuku didn't have a private bathroom. We said amongst ourselves we'd have to go a day without taking a shower if our only choice for a bath was to go to a sento (public bath house). To our relief, Goyomon did have a private ofuro, a Japanese bath! (I guess the person we were communicating with meant there was no private bathroom in the bedroom.) Whew!
In the ofuro was a low tap with a detachable showerhead, bottles of shampoo and bath gel (all labeled in Japanese syllabic script or kana), a low plastic stool in front of the tap, and a bath tub of hot water. I was the last to use the ofuro and I knew (hoped) my friends were smart enough to soap, shampoo, and rinse before soaking in the tub!
Photo from Trip101
Bathroom
I am guessing owning a property in Japan is expensive that's why most apartments are small. A small apartment therefore will have a small bathroom. In the Airbnb apartment we stayed in in Shinjuku, the bathroom was complete with toilet, sink, bathtub, and shower, all in one small space—with arms outstretched I could touch opposite walls. (Tall westerners wouldn't have any wiggle room in a bathroom this size.) I was amazed how well thought out and efficient the layout was. The faucet/tap could be swivelled from the sink to the tub and the shower was also connected to the same tap.
Photo from City Hotel NUTS
Toilet
When entering a Japanese house/inn/guesthouse/hostel, one is expected to remove his/her shoes and slip into house slippers. But that's not the end of the footwear change. When entering the toilet one must remove his/her house slippers and change into toilet slippers! That's the first step.
Photo from Japan Snowtrip Tips
Step two: Say "Open Sesame!" Some toilets have lids that automatically lift open to welcome your butt.
Step three: Sit on your throne. On cold days, you might want to sit on the toilet even if you don't have any business there, because some toilets have heated seats!
Step four: While doing your thing, study the panel. If you can't read Japanese, try to figure out the symbols. There's a shower for the front or for the behind. There's a button for flushing sound if you want to drown out the embarrassing sounds your butt is making.
Step five: Dry your butt. Yes, there's a dryer button: 乾燥 or the button with the wavy lines.
Step six: Flush. Which one is the flush button you ask? Did you just do number two? Then press 大 (big). If it was just number one, then press 小 (small).
Step seven: If you had just dropped a giant stink bomb, then please press the パワー脱臭 power deodorizer button. Please!
Photo from GaijinPot
Step eight: Wash your hands. Some toilets have a toilet tank sink. Pretty ingenious. Water that you had used to wash your hands will be utilized for flushing the toilet.
Photo from Sanko
Some public toilet cubicles will have a very small, maybe 6 inches in diameter, sink.

I was surprised to find that, after all of these innovative toilet related stuff, there are still squat-type toilets around!
Photo from Matcha
PS. If you stumble into an old school toilet without all the bells and whistles and have to resort to good old toilet paper, please remember to flush your used toilet paper. Throwing used toilet paper into the trash bin is a big no-no.
Japan
Know Before You Go
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An Ignoramus in Japan: Bathrooms and Toilets (you're here!)
From Tokyo to Hiroshima (2015)
10D/9N | Tokyo, Toyama, Kyoto, Hyogo, Osaka, Hiroshima
Tokyo Accommodation: Shinjuku Airbnb
Tokyo: Memorable Tokyo Eats
Tokyo: Odaiba
Tokyo: Doing Touristy Things in Tokyo
Toyama: A Hamlet Called Ainokura
Kyoto Accommodation: K's House Hostel Kyoto
Kyoto, Japanecdote: Wisdom from the Road: On exits #2
Kyoto: By the Thousands (Kyoto Imperial Palace, Sanjusangendo, Fushimi Inari Taisha, Arashiyama Bamboo Grove)
Kyoto, Japanecdote: Turning Japanese
Kyoto: Braving the Crowds at these UNESCO World Heritage Sites in Kyoto (Kiyomizu-dera, Nijo Castle, Kinkakuji)
Hyogo, Japanecdote: If Only I Could Speak Nihongo
Hyogo: Day Trip to Himeji: Himeji Castle and Shoshazan Engyoji Temple
Hyogo, Japanecdote: Am I an Alien?
Hiroshima: Strolling and Snacking in Miyajima
Hiroshima: Remembering the Past in Hiroshima
Osaka, Japanecdote: How to Lose Friends
Osaka Accommodation: Osaka Airbnb
Osaka, Japanecdote: Where is Bentencho Station?
Osaka: Osaka Adlaw, Osaka Ako sa Osaka
Osaka, Japanecdote: Learn From Your Mistakes
Concentrate on Kansai (2016)
UNESCO World Heritage Sites in the Kansai Region
Kyoto Accommodations: Guesthouse Wind Villa, Shiori Yado
Osaka Accommodations: Hotel Raizan, Hotel Mikado