Travelling by air
Air travel is always a hassle for a peripatetic wildlife photographer and it does not help when the regulations for both hand and checked baggage vary between one airline and another; e.g. I can take up to 23kg out of the UK when I fly with Virgin  into Shanghai, but internal flights within China only allow 20kg.  However, they doen't seemed so fussed about weighing hand baggage, so I end up carrying all the heavy books I buy in China in a very capacious handbag. 

Fed up with having to battle to take my Lowepro Nature Trekker as hand baggage with some airlines  – I guess it looks large on my diminutive frame –  I have now resorted to either checking this photo-pack and carrying my gear in a small grip or using a smaller photopack.
• Wide angle lenses, my field notebook and mobile phone are all carried in my photo vest.
• Lens hoods, flash and filters are checked as are both Allen keys and jeweller's screwdrivers (if you leave them in your hand baggage they are very likely to be confiscated).
• The rest is either carried in a small photo pack or individually wrapped in Domke Protective Wraps (soft, padded squares within a Velcro patch on all 4 corners) in a small grip bag.  My Lowepro Nature Trekker, checked in a large grip, contains tripod ball and socket head, filters, flash and 500mm lens hood.
• SanDisc Extreme IV 4GB CF cards, downloaders, battery recharger, plus charging leads for camera batteries, downloader and mobile phone are carried in a capacious handbag, together with a Visible Dust Arctic Butterfly sensor brush and an A4 notebook used for writing articles or my current book.