First three are very common/household items in Indian cooking (I'm from Maharashtra/Western India. Near Mumbai)
1. We put curry leaves and turmeric powder in EVERY meal we cook (tadka : warm the oil then add these two, plus mustard seeds and cumin seeds)
2. Children have warm turmeric milk in the morning (especially in winters)
3. Adults have Lemongrass tea
4. Never heard of Pandan