Excellent shots!
I have the same problem (I'd imagine everyone does!). It might look fine through the view finder and on the small screen, but when I get home on my main monitor, it'll suddenly become obvious that it wasn't in focus or something. Luckily, the joys of digital means I can a couple of photos at a time, play around with some settings and take a couple more in a short space of time and not worry about space on the memory.