I'm on Android. I use an app called Pushbullet, which mirrors notifications but also enables text and file sharing between all your devices. Sharing is instant. I also enable "open immediately on browser", meaning if I send a link from my phone to my computer browser then it'll automatically open a new tab with that link. It's pretty neat, it's really two or three taps away from any web browser tab on my mobile (open menu, hit Pushbullet shortcut; or open menu, open sharing menu, push to all devices).