Oh KSP, the ultimate game of trial and error... Kind of. I've been playing it a lot lately, it's so addictive, dangerously addictive.
Anyway, other KSP-ers out there, what have been your greatest successes/failures?
For me, success was a return manned mission to Eeloo. Failure wise, it would have to be forgetting to add a decoupler on a transfer stage for a probe headed to Vall (I ended up crashing the craft into Jool "for SCIENCE!") hehehe.