Taking the standard deduction (all your work, charitable donations, and other itemizable items still don't cross this threshold).
It's really annoying that taxes are even the way they are, it's all just a huge, convoluted mess. For something like 95%+ of the US the government already knows your earnings (W2/etc), banking (INT-whatever), and any brokerage/etc stuff. The only reason the IRS doesn't send a pre-filled out form that says "this is what we believe is owed to whom, - please pay / cash the check, or fill out taxes manually to report where you think we missed data" is PRECISELY because HR Block and Intuit (Turbo Tax) lobby for complicated taxes and no government automation.