If your iPhone battery is dying too fast, this guide will show you the three surprising features that are likely causing the problem.

To apply the dollar currency to a value, select the cell, press Ctrl+1 to launch the Format Cells dialog box, and select "Currency" or "Accounting" in the Number tab. Then, choose the dollar symbol ...

If you're waiting to install Apple's latest system update, or you're using an older iPhone model, these settings can improve your everyday experience.