TOKYO - Heated toilets that spray users clean, train seats that revolve so passengers can admire the scenery and a convenience store on every corner: welcome to Japan, where hospitality and customer service form part of the country's DNA.

Visitors readying to flock to Tokyo for the 2020 Olympics can expect a dizzying array of services in Japan where quirky, futuristic gadgets and everyday conveniences ease the passage through the stresses of daily life.

"Attention to others is at the root of Japanese culture," said Kazuhiro Watanabe, a consumer trends analyst at Nikkei BP consulting group.