I recorded a video about an online 15 minute game I played. Over the course of the game, I played a nice sacrifice, but also missed several tactical shots that would have won the game on a spot. You can try to solve the positions below for White, there are two bishop sacrifices, one exchange sac (that was the one I found during the game), and a rook sac! The video will contain the answers.
Replay through the video to actually see the solution and the entire game: