I met with my oncologist yesterday, and requested that we hold off on the Chemo treatments until after Christmas and New Year's. He said, "Sure! I have no problem with that." He explained that these "agents" aren't subject to a rigorous schedule - that reasonable delays are OK. So, I should be pretty much at full strength for the Holidays!
I also told him that Dr. Liau had recommended extending the Chemo regimen by 3 months. He must have been in an agreeable mood - he said, "I'd actually have no qualms about extending it indefinitely." I understand that as long as the drug is well-tolerated by the patient, there's not a hard/fast rule about when to discontinue.
I'm hoping the extra 3 months will do the trick. Though I'm not having any major side-effects, the fatigue is still significant hurdle, although certainly tolerable - especially given the alternative!