1. Air tickets price varies according to the time of booking. The best time to book flight tickets will be to book very early and way in advanced or at the very last minute where promotions are rampant to sell left over air seats. Below are 3 articles for futher reading:
Understanding Airline Ticket Prices
Tips for Finding Cheap Airfare
Buying Air Tickets – How to find the best flights and cheapest fares
2. Packing light is very important when you have lots of things to carry in a limited space and weighted luggage up the plane.
Two important rules i have for myself is to roll up my clothes (put them in air tight ziplock if you have to) and to pack a compressed formula of 2 to 3 tops for every bottom i have for day wear. The number of bottoms i bring is equivalent to about the number of days i will be away divided into half. (eg away for 5 days, so 3 bottoms will do, but not inclusive of night wear) i thought these 2 articles are a good read: How to pack light and Ten ways to cut down your luggage
3. Have checklist so you do not miss things out. Remember important stuff such as your passport and cash, electronic chargers, universal adaptors, emergency contact list, photocopy of passport, itinerary, addresses, travel insurance, flight details and other important documents.
4. Do a search on hostels or homestay if you have a budget in accommodation.
For hostels, i would recommend hostelbookers as hostelworld and agoda can be more expensive but agoda offers points for discounts on future bookings.
If you are comfortable with staying over at other’s place, feel free to try airbnb for a daily fee or coachsurfing for free.