Skypup, I'm no longer on Xeloda but I'll let you know my experience. I did the normal 2 weeks on/one week off regimen for 14 months. After surgery I had an additional 10 months of Xeloda, but it was on the one week on/one week off schedule. Of the two, I highly preferred the one week on/one week off schedule. I had a lot less side-effects with it.
As you probably know, you take the pills twice a day (morning and evening) with a full glass of water within 30 minutes after the end of a meal. That "within 30 minutes" is variable though. For instance if I had a light meal like soup, I'd take it in 15 minutes or less. For me, the sweet spot was usually 20 minutes after a regular meal. Any more or less brought on nausea.
Besides HFS I also lost my fingerprints on Xeloda!
Apparently that's an unusual side-effect, but it's weird if it happens to you. You don't realize those little ridges are what enable you to grip things. Everything was slippery and hard to hold. They are starting to come back now. I also lost 3 toenails due to HFS, despite putting heavy lotion on my hands and feet every day. I have delicate skin though and was pretty active. I recommend getting a shoe with a cushy sole and a wider than normal toe box. I wore Keen sandals a lot - they are kind of like a sandal and a hiking shoe combined. They were supportive for walking, hiking, etc. and kept my feet cool when the Xeloda heated them up.
Hope this helps!