Here's how it all works. Note that for the originating leg I'm having to take off a Tuesday evening and am gone through a Sunday. The rest are all out Thursday eve back Sunday except for the end which no matter how hard I try gets me back to DFW early Monday morning. Legs in parentheses are positioning flights that are NOT part of the RTW. Non-OW carriers will be noted, those got paid for with miles.
This is all on a weekend in March.
Tue - (CO CRP-IAH-LGW VS LHR-JNB arr Thur morning.)
Thur - CX - jnb-hkg
Fri - CX - hkg-cgk (overnight hotel stay)
Sat - CX - cgk-hkg-nrt-hkg-syd
Sun - QF - syd-lax-dfw-(aa CRP)
Note that if I didn't mind getting back on Monday morning I could have gone SYD-JFK-DFW and earned quite a bit more mileage but I can't let myself be gone that long and this routing gets me home (and in bed!) that Sunday night.
I then pick up two months later after hopefully calming my by-then wife and parent/boss down enough to let me go again.
This leg, I take off on a friday afternoon/evening. I have a 9 hour layover in GRU, not sure what I'll do but I'm sure I can figure SOMETHING out.
Fri (AA crp-)dfw-gru
SAT LA gru-scl-lax
SUN AA lax-dfw-(crp)
Again, two months later, I leave on a Fri.
Fri AA lax-sxm (with 2 stops)
Sat AA sxm-jfk (I was wrong, this is another hotel night. I could probably get home somehow but I chose not to bother.)
Sun AA ewr-dfw-(crp)
And finally, in Sept, I wind all this up. This time, I also leave on a Thursday evening.
Thu (AA crp-)dfw-lgw
Fri BA lhr-dxb
Sat BA dxb-lhr-jnb (doing a Darren turn here

and leave 2 hours after LHR-DXB. Arr jnb Sun)
Sun (SAA jnb-gru AA gru-dfw arr Mon)
Mon (early EARLY morning)(AA dfw-crp)
And it's done! Except where noted, I overnight on the plane and am back in CRP on Sunday night. It'd be even easier from a hub or larger city.
[This message has been edited by kanebear (edited 12-29-2001).]