Last year I took over 900 pictures in one holiday using a Kodak 64gb class 10 micro card (with adapter) on a Canon EOS 70D. It took me ages to download on to my laptop and it kept stopping telling me the computer had run out of space (which it hadn’t). Would anyone advise using smaller capacity cards? I have one unused 32gb spare and feel the need to start afresh with new cards for my next big holiday in a couple of months. I will be taking mainly mountain views for half the holiday with a telephoto lens. Anyone got any preferences on the best capacity to buy?