When to tip, how much to bargain, and how to handle money in Bangkok without losing it.
Not expected but appreciated in restaurants (5–10%) and by guides; hotels/taxi not mandatory.
Expected in markets and street stalls; not in malls or restaurants; start at 50% of asking price, negotiate to 70–80%.
Use credit cards for hotels/restaurants (rewards points); use cash for markets/street food; no-fee ATMs at banks.
Keep passport/cash separated; use hotel safe; report lost cards to bank immediately; keep receipts/serial numbers.