Scars, Stretch Marks, and other Sexy Thoughts

Yesterday, for a second, I thought I spotted a stretch mark on my ever-expanding abdomen. I didn't, thank God, but for a moment I felt utter terror. I know I am prone to them (I have a few faint ones on my outer thigh from my adolescent "growth spurt" - and they have always been the bane of my existence), even though I miraculously avoided them during my last pregnancy. Now, I'm 26 weeks along and still no sign of them. I keep rubbing and massaging and praying, and so far, that has worked. But it's always something.
During my last pregnancy (which was also my first) I had the linea negra during at least half of it, which made me less proud of my burgeoning belly than I otherwise would have been. Who wants to take a picture of their baby bump with a brown line down the middle? Fortunately, it disappeared a couple of months post pregnancy. This time around, the line is just starting to appear, and it's quite faint, so I should be happy. No stretch marks, no line. But I've found something else to obsess over. The two small scars (about a 1/3 of an inch each) that are the result of my pre-pregnancy appendix surgery. The irony does not escape me.
So far, I've been through (almost) two pregnancies without a stretch mark, and with only a small c-section scar that still permits me to wear a bikini, but I have these two dark scars inches away from my belly button, marring my bikini body forever, all because of an organ that you don't even really need. It makes me regret ever having had that stupid surgery.
So know I am going to try everything possible to get rid of it, from using those scar-reducing silicone sheets during the pregnancy, to whatever it takes afterwards.

Do you have a scar that drives you nuts? Or any great scar-reducing remedies? I'd love to hear!