Let's mount ext2/3 with relatime:
--- rebuildfstab        Sat Jan 17 19:12:40 2009
+++ rebuildfstab.new    Sat Jan 17 19:15:35 2009
@@ -75,6 +75,7 @@
   case "$FSTYPE" in
     ntfs) OPTIONS="$OPTIONS,ro,umask=000" ;;
     vfat|msdos) OPTIONS="${OPTIONS},umask=000" ;;
+    ext2|ext3) OPTIONS="${OPTIONS},relatime" ;;
     swap) OPTIONS="defaults"; MOUNTPOINT="none" ;;
   esac
   if [ "$MOUNTPOINT" != "none" ]; then
This saves some write cycles, because it skips most file access time updates. It still allows apps that rely on access times to work properly, so adding it is a win-win.