I didn't expect we would stay in Bangkok for five days

Although many people use Bangkok as a transit hub and only stay for 1-2 days before heading to Pattaya or Chiang Mai, we stayed in Bangkok for five days and still felt it wasn't enough. DAY1 Arrived in Bangkok at night DAY2 SAIM District City Walk Erawan Shrine - Central World - Siam Paragon - SAIM CENTER - SAIM DISCOVERY - Gaysorn Village - SANYA Center - Chulalongkorn University Food Street DAY3 Pattaya Coral Island one-day group tour + Thai massage DAY4 Riverside District City Walk Wat Arun Thai costume photo shoot - Bangkok Museum - ICONSAIM - Riverside restaurant dinner DAY5 Maeklong Railway Market + Floating Market one-day private car + Big C shopping DAY6 Return to Shanghai Pre-trip Preparation ✓SIM card ✓Cash 10,000 Thai Baht (about 2000 RMB) ✓Travel insurance ✓Download APPs The most used APPs this time were Grab and Google Maps. It's better to register for Grab in your home country because it requires a verification code, which might be hard to receive in Bangkok (I couldn't receive the verification code at all in Bangkok, luckily Fei had completed the registration beforehand, otherwise it would have been 'embarrassing'). Grab has a good response time for calling a ride (including motorcycles), and the prices are fixed. If you're worried about credit card fraud, you can ask the driver to accept cash, and they won't refuse, but try to prepare small change to avoid issues with change. Tuk-tuk: The local app is called Muvimi, which prevents you from being overcharged, but you can't call a tuk-tuk from another district, and you can't withdraw money after topping up, which is a bit inconvenient. ✓Book hotel + flight (prepare electronic itinerary) The airline staff said that customs might ask about it when entering the country. If you have a round-trip ticket, 10,000 Thai Baht is enough; if you don't have a return ticket, you need 20,000 Thai Baht (they just want you to spend money). In reality, when entering through Don Mueang, they didn't ask anything, it was all electronic scanning and fingerprinting.