Find a way to make white noise to block out the noises around you. If you have access to a white noise machine or fan, turn that on to provide a constant noise to block what is going on around you. If that is not available, go to SimplyNoise to play a white passive sound loop or download a file. If you would rather have an application, download Noisy for Macintosh. If you don't have access to the internet, look around your house for noise canceling headphones, earplugs, or a towel to wrap around your head. If necessary, even plug your ears like a little kid. Anything to get peace and quiet for meditation.
If you travel a lot on airplanes, it is very nice to have a pair of the passive noise canelling headset that have been on the market for a while now. They make any airplane trip more enjoyable and often save me from landing with a headache. Most of the time though, you just want to wear a regular pair of earphones to listen to your mp3 player and not those bulky noise canceling ones.
If you already had an earwax, make it a habit to clean the external opening of the ear canal, but without resorting to sticks: just wipe with a paper towel placed around the finger. Wear ear defenders if you work in a dusty environment.
If you hear a ringing, buzzing, or hissing sound in your ears or your head, then you are suffering from tinnitus. In addition, different people have different symptom as well. In some people, they might hear a loud roaring passive noise cancelling headset, but in some people, they might hear just a quiet high pitched sound.
Whether you're flying on a plane or staying at a hotel, you can't beat your own pillow. These little support pillows are great for sleeping on planes. They support your neck and are made with lightweight foam and best of all their machine washable. It's easy to store travel gear in a carry-on.
Get out of your seat from time to time on longer flights so that you can stretch your legs and get the blood flowing. This will make you feel much better.