How many features on your iPhone do you use every day?  There are probably too many to count.  Time.com recently featured a list of 27 iPhone Tricks You Should Know About for iOS8 and iOS9.

Here are 11 tips we think are especially useful:

Respond to texts without unlocking your phone

You can respond to texts directly from your lock screen by pulling down on the notification drawer and swiping over to the left on the text notification. You’ll see a “Reply” option, and tapping it will let you type a response without having to unlock your iPhone.

Respond to texts while you’re in an app

If you’re in an app, you can swipe down from the top and access the notification drawer to answer a text the same way you would on the lock screen.

See which apps drain the most battery

Want to know why your iPhone battery is draining faster than usual? Head over to Settings >General >Usage>Battery Usage. This will tell you which apps are occupying the most battery power.

Send audio and video messages that self-destruct

Just in case you’re feeling like Mission: Impossible (we couldn’t resist), you can send audio snippets and video messages that expire after two minutes. If you head to Settings>Messages and scroll to the bottom, you’ll notice a section for audio and video messages. You can choose to let them expire after two minutes or never.

Mute text messages

You can mute text message notifications for individual contacts and conversations. Just head over to your messaging thread and switch the “Do Not Disturb.”

Multitask within emails

If you’re in the middle of an email, you don’t need to trash it to return to your inbox and browse other messages. As you’re composing an email, simply tap the top of the message where it says either “New Message” or the subject and drag it down to the bottom of the screen. This will push the message to the bottom so you can look at other emails. When you want to return, simply tap the email to keep editing it.

Forward text messages to other contacts

You can forward text messages to other contacts the same way you would an email. Just double tap the message you want to forward, press the “More” option that appears next to the text, and that specific sentence, word, or phrase will appear copy and pasted into a new message. Fill in the “To” field at the top to forward that message to someone else.

Have Siri read anything

You can enable Siri to read articles on websites, books, text messages, and more thanks to one of the iPhone’s lesser-known accessibility features. Head over to Settings > General > Accessibility > Speech. Then turn on “Speak Screen” and “Speak Selection.” Now, when you swipe down from the top of the screen with two fingers, Siri will dictate the content of whatever is on the screen.

Have Siri remind you to read a text message or email at a later time

If you just received a text or email but can’t take the time to read it right now, you can ask Siri to remind you later on. When you receive the notification, just ask Siri to remind you to read it later. This works with Messages, Mail, Notes, and Safari as long as your iPhone is running iOS 9.

Save battery by putting your phone in grayscale mode

If you’re running low on juice and just need basic functionality from your iPhone, try switching it to grayscale mode to save power. Just head to Settings > General > Accessibility and tap “Grayscale.”

Use “low power mode” to make your phone last longer

Low Power Mode, which is also a new addition with iOS 9, tells your iPhone to cut down on certain features to lengthen its battery life. This means it’ll stop refreshing apps in the background, pushing email, and other tiny things in order to keep your battery going.

Check out the rest of the tips at Time.com