Q. I have the Gmail two-step verification turned on for my account, but I am preparing to travel overseas and will not be able to use my cellphone to get verification codes. Should I just turn off the two-step verification for my trip?
A. If you will not have access to your cellphone for the Gmail verification process, you can print out a set of codes before you leave. When the Web browser on your friend's computer requests a verification code, type in one of those codes. You get 10 codes at a time. After you use one to log in, it becomes inactive and you move on to the next one when you need to check your Gmail account again.
You can create a set of codes by logging in to your Google account and clicking the Show/Generate Code option in the "Printable backup codes" section. You can print the codes or save them to a text file. You can also generate a new set of codes if you use (or lose) the first batch. Google has more information on using backup codes on its support site.
Along with printable backup codes, that same Google page of verification settings has options for sending codes to other phone numbers, like those of trusted friends or family members. And even if you do not have cellular service for your phone overseas, you can use the Google Authenticator app for Android, BlackBerry or iOS to generate codes on the device. The "Mobile application" section of the verification settings page has instructions.
Reclassifying Songs in iTunes
Q. I noticed that iTunes has labeled some of the music I have loaded from CDs "Unclassifiable" in the genre list. Can I change this so the tracks sort into the proper music types?
A. Song files can sometimes be tagged improperly if the information used by iTunes to label the converted CD contains errors or incomplete information. The labels are not permanent, though, and you can edit them.
Select a song in iTunes, go to the File menu and choose Get Info; you can also right-click on the song and choose Get Info. When the Info box appears, go to the Genre field and use the drop-down menu to select a new style of music -- or type in a new one. Make any other corrections you need to in the other text fields and click O.K.
TIP OF THE WEEK Want to grab a photo you have uploaded to your Flickr account, to print out or use as a profile photo for a social media site? Just log into Flickr and click on the thumbnail image of the picture you want to use in your Photo Stream or other photo set.
On the picture's main page, click the More menu icon in the bottom-right corner (it looks like three large dots) and choose "View all sizes." On the resulting page, you should see a variety of sizes for the photo. The sizes are measured in pixels, like "Square (150 x 150)," "Medium 500 (333 x 500)" and the original size of the image when you uploaded it.
Click the size you want and then click the Download link on the page. If you already know the image size you need, you can just right-click on the picture and choose the desired option from the "View all sizes" menu from the photo's main page.
This article originally appeared in The New York Times.