1. Bottled water
Tap water is safe to drink in most European and North American countries, yet people still insist on buying bottled water. If the bottle is labelled as being from volcanic springs - you can bet that it has probably been imported from some distance. Imagine the carbon footprint of the flight / shipping of the water! And that's before adding in the emissions due to making the bottle and / or recycling it.
2. Food and drink from far distances
When you go to the supermarket, look at the label to identify which country the food is from. There is no need to buy New Zealand apples in the UK in the autumn - but people do!
Think twice about buying a bottle of wine from the other side of the world - you may be able to find much more local wine, which will have travelled far fewer miles.
Better still try growing your own fruit and vegetables in your own garden. Planting an apple tree will not only provide you with lots of fruit, with zero carbon footprint, but the tree itself with breathe in carbon dioxide from the atmosphere - making these fruit effectively carbon negative!
3. Meat eating
Reduce your consumption of meat, especially red meat.
4. Clothes from far off lands
Check the clothes labels before you buy. If they come from more than 1000 miles away, keep looking!
5. High packaged items
Avoid goods and services that have unnecessary packaging!