But you can try to avoid these fates by checking your data use throughout the month. Each iPhone carrier in the U.S. (with one exception) gives you multiple ways to find out how much data you're using.
Hereâs how to inspect your tires: 1  The penny test: Put a penny with Lincolnâs head upside down into the groove of the tire. 2  If you can see all of Lincolnâs head, the tire is considered dangerous. 3  The less of Lincolnâs head you can see, the safer you are.
At this point, it's time to replace the tires. 3. Check the tread by using the penny test.  Take a penny, and place it upside down with Lincoln facing you in the center of the tread (at the thickest part of the tire). 1  If you can see the very top of Lincoln's head or the copper above it, replace the tires immediately.