1) Pack adequate supplies. The area that you're traveling to, especially international travel, may not have your preferred brand of feminine hygiene supplies. There's no fun in getting stuck with pads the texture of cardboard or tampons with flimsy strings. Pack at least the minimum for getting through the trip, and if you are a heavy bleeder or want to feel secure, feel free to pack a few more. Better safe than sorry.
2) Get ready before you get out of the door. There might be a long line for the bathroom before you leave, and before you can get in the stall, you might have already leaked. Save yourself some time and hassle by getting ready before you leave and changing later, when it's more convenient.
3) Pads: Use extra protection. This applies especially on planes. Use a higher absorbency because you might not be able to change as often, so the absorbency will keep you protected. For long, international plane rides, you could also consider overnight pads, which are usually extra long, and have higher absorbency. This way you only need to change a few times as opposed to many.
4) Tampons: Backup or protect. For security, you could use a pad or extra pantiliner with a tampon or increase to the next absorbency. Your call.
2) Get ready before you get out of the door. There might be a long line for the bathroom before you leave, and before you can get in the stall, you might have already leaked. Save yourself some time and hassle by getting ready before you leave and changing later, when it's more convenient.
3) Pads: Use extra protection. This applies especially on planes. Use a higher absorbency because you might not be able to change as often, so the absorbency will keep you protected. For long, international plane rides, you could also consider overnight pads, which are usually extra long, and have higher absorbency. This way you only need to change a few times as opposed to many.
4) Tampons: Backup or protect. For security, you could use a pad or extra pantiliner with a tampon or increase to the next absorbency. Your call.