Resist the urge to start coding and think hard about the problem your program will solve. If it can't be solved without coding, resist again, and design every piece of the program carefully, and, paraphrasing Dijikstra think about LOC's as lines spent, not lines produced.

fsck. With softdeps you still need fsck, which in large disks may take forever and consume a lot of memory. Background fsck helps, though.