Please choose the correct ending to complete the given sentence: Travel: [header] How to use a travel pillow [title] Try your neck pillow before buying it. [step] Neck pillows don't typically come in different sizes, so the only way to know if it will fit comfortably is to try it on. If possible, put your neck pillow on before you buy it, or keep the receipt and try it on before your trip.

Ending1: [substeps] If you can't find your neck pillow online, contact the nearest travel store. Remember to wear a face mask to protect your neck body from respiratory and heart disease. Ending2: Here's how to write your partner's name on your neck pillow : [substeps] If the pillow you're sleeping on doesn't fit your neck pillow correctly, you can simply write down the name first. [title] Pick a traditional line or pattern to write in. Ending3: You should be able to rest your head on it without bending your neck uncomfortably, and the material shouldn't pinch or chafe on your neck. [title] Inflate your pillow if necessary. Ending4: [title] Buy a pillow with a stock head. [step] If you plan to travel with the stuffed stuffed topic on your pillow, opt for a head that can fit into the pillow.

Answer format: ending1/ending2/ending3/ending4