Don’t eat near a major tourist Site. These places will be expensive; you are paying for the view and location. A few of them have decent food, but the places the local frequent will be better food at a better price. North Korea tours won’t give you a choice- you eat where the tour eats. Some Japanese Package tours also choose the restaurant for you, but this can be an advantage- the package tours will get a group discount in return for providing regular customers, and the food will tend to be something that the tourists appreciate. Package tours will often use lesser known eateries rather than the tourist traps as
Don’t use Money Changers at the airport – the exchange rate and fees are too high. An ATM will get you a good deal, especially if it is linked to the same bank you have at home. Citibank operates in South Korea, so you can use a Citibank account from Australia. Find a card system without fees.
Don’t limit yourself to the same internet search engines. Search engines in your country will not give all the best results for a foreign country. And a foreign country will not always be in your language. But use different search engines for more results. And do look for suggestions from returning travellers.
Don’t compromise time to save money. You will only be on vacation for a few weeks or so. If you save $10.oo but have to walk for an hour, or wait for a connection, you are wasting vacation time. You probably aren’t coming back soon, so make use of the opportunities.