When travelling, I like to use the following websites and organisations…
Virgin Australia – I fly first with Virgin, and am a member of their Velocity frequent flyer club. Their partner airlines include Delta, Singapore Airlines, Air New Zealand, Etihad and Air Berlin, which will fly me most places in the world I need to go.
Agoda.com – when booking hotels, I usually book through agoda as it is the booking affiliate for the Velocity program and it helps me earn points.
airbnb.com – when hotels are too pricey, and I want a base where I can cook some basic meals or do laundry, airbnb is my first point of call. I’ve also used it when travelling alone, and wanted to stay with locals who can keep an eye out for me and give me tips on getting around a new city.
flipkey.com – another apartment rental service. Sometimes offers wider options than airbnb, for certain cities.
hotwire.com – blind booking site, that occasionally offers some incredible discounts. The best deal I ever got via Hotwire was $AU140 p/n for a week staying at the Sheraton Times Square in NYC. I usually research carefully, and use betterbidding.com to cross-reference and see which hotel I’m likely to get.
travel.com.au – I prefer to make bookings directly with the airline, but this website gives a good quick overview for fare sale periods, and will show if a day before or after your chosen flights will be cheaper.
skyscanner.com – I use both the website and the app on my iPhone. Gives an excellent rundown of cheapest fares and where to book them.
herpackinglist.com – tips for lady travellers, with gear reviews and excellent packing tips
kathmandu.com.au – keep an eye out for their sales. They often have big discounts on travel packs, outdoor and travel wear, and packing accessories like cubes, compression bags and stuff sacs.