I was at a convention on Saturday, and kept thinking about a very close friend throughout the day. About an hour before we left, I discovered that a voice actor who voices a video game character we're both extremely fond of was doing a signing and photo opportunity. Completely on a whim, I went and queued up, and when I got to him, asked if he would mind recording my friend's favourite line from the games onto my camera, and he was perfectly happy to (he was a total sweetie!). Again, completely on a whim, I decided to ring my friend and tell her about the present I'd be sending her once I got home.
After I sent the video to her, my friend emailed me to inform me she'd been having a really horrible week, and really wanted to vent to someone, so she'd opened an email, ready to write about what was getting her down...
...When I suddenly rang her! She said the timing was so perfect that it completely cheered her up.
It could have been total luck, but I prefer to think that I'm psychic. I have had other moments like this, but this is the first one I've been able to use for the good of others!