Maybe you have travel plans that will involve airplane flights and airport layovers. Maybe you'll be an automobile passenger on a road trip. Maybe you need to visit a friend or relative who is not feeling well.
Taking Knitting Needles on the Airplane
1. Take only circular needles with you. You know, the ones with two points attached by a coil -- not the long straight kind.
2. Knit something so you have work on the needles to demonstrate what they are.
3. Put the needles and knitting in a see-through plastic bag, and place it in the tray along with your liquids, etc. I think this is the most important part. It means that the security people don't have any surprises, no wondering what THAT is in your suitcase, risking getting poked, etc. Total exposure is my motto. No extra attention required of them.
4. If I have a small pair of scissors, I'll include that in the bag, too. That way it's obvious why I need them.
5. Once I do that, I may include lots of other needles in my bag. At least they'll know what they are when they see them on their scanner.
Taking your Knitting Along on a Trip
The solution: Always take at least double the amount of yarn you think you could possibly use. Heck, take all the yarn you need to finish the project. Maybe even take enough to start something else. Sure, it takes up space. But it's squishy and weights next to nothing. Yarn or that extra pair of jeans? Easy choice.
Firstly, you might be surprised at how much time you will actually have to knit. And more importantly, it's so maddening to have extra time (delayed plane, for example) and regret that you left all that yarn at home. Suddenly, a delayed plane becomes an opportunity, rather than a tragedy. Then you have that "scarf you made in the Detroit airport," etc. You get the idea.