Apple removed the Wish List feature from the App Store when iOS 11 was released, which was a huge disappointment, to say the least. While the Wish List still remains in the iTunes Store, it seems gone for good for apps, but that doesn't mean you can't still keep a wish list of interesting apps and games to buy later — using software already on your iPhone.
When you tap on a URL link in a text, email, or wherever, your iPhone's default reaction will be to open it up in Safari, and there's no way to change this in the settings. However, there is a way you can work around this to open up links in Chrome instead. Even if you accidentally open a link in Safari, there's a quick way to jump the tab right into Chrome.
When it's time to calculate a tip at a restaurant or bar, I usually try some mental math at first, but sometimes I resort to opening the Calculator quickly from the Control Center on my iPhone and doing a quick calculation. But with Apple's Shortcuts app, there's an even easier way, and you don't even have to leave your lock screen to get the results.