How to split travel budget between cash, forex cards & credit cards?

Travellers heading abroad should split their budget between cash, forex cards and international credit or debit cards. As per Niyo Forex's Sai Shankar, 10-20% should be kept in cash, 60-70% allocated to cards, and 10-20% reserved as a backup. Travellers should also consider local payment habits, carrying more cash in cash-dependent countries and relying on cards in card-friendly destinations.