I absolutely LOVE how God uses people that we think couldn't possibly be used by God to do amazing things. For example, Rahab, a harlot - he uses her to protect the spies that Joshua sent and then she becomes the mother of Boaz who is a great, great, great, etc.. grandfather of Jesus Christ.
I absolutely LOVE how God redeems situations without us ever intervening - that's how He lets us know that we can trust Him fully! For example, my marriage - at the beginning it was very rocky - neither of us were saved and we were just living for ourselves. Then, God brings us halfway around the world to Misawa, Japan to allow us to know Him and to begin to realize we need to serve the One who made us. Amazingly, my husband and I were both saved at the same time w/o realizing it until afterwards. Now, our marriage is awesome - all glory goes to God!
Another is an example of a relative of mine who was in a situation that I thought wasn't the best - I prayed and prayed that The Lord would fix the situation - provide a way for this person to get out of the situation or provide a change of heart, something. And, just recently, the situation has been fixed - all glory to HIM!
A third example is a time when I was in a Bible study where I didn't think the leader was acting in a godly way. I thought I might have been the only one feeling this way so I didn't say anything to anybody else in the group. I prayed that I might have wisdom to know whether to continue the study or to change to a different group. Then, I get an e-mail saying that the leader had decided to step down from the position for personal reasons. This was a Thank You, Jesus moment! He had it covered.
A lot of times I don't know why I have to go through certain tough situations - not being able to have a baby when I want, being w/o my husband for a month at a time, etc - but I have to remember that God is in control and the plans He has for me are for good and not evil. I have to remember to be content because what I have right now are amazing blessings and they come from the One who knows best.