I've had so much success with my very strict pacing that I wanted to post a little hope.
I've had this stupid illness for about 30 years, and the best I've been able to say about pacing in all that time is that it is necessary, but that all changed recently.
My pacing has always taken the form of trying to break down tasks into smaller chunks and dropping anything that didn't 'need' doing. Despite my best efforts I was still having 2 or 3 days a week when I wasn't able to do anything at all (not even get dressed). So 2 months ago I switched to a different form where I would do 10 minutes of activity followed by 5 minutes of relaxation. So that's a very strict 5 minute relaxation break, every 10 minutes, every day.
After 2 weeks this started to feel easy so I moved up to 12 minutes until that felt easy. I am now up to 20 minutes (increments were 10, 12, 15, 17, 20) and plan to move to 22 minutes next week.
Since doing this I have not had any crash days, I have been able to get showered and dressed every day, and I am now able to leave the house up to 3 times a week without any ill effects. None of these things have been possible for 3 years.
The relaxation technique I use is this one - http://forums.phoenixrising.me/index.php?threads/relaxation-technique-not-based-on-breathing.19928/
Most things can wait 5 minutes before resuming (I had a break in the middle of typing this), and even things like getting showered and dressed can be broken down this way. I did it by having a 5 minute break after the shower and a 5 minute break after slopping on the creams. I don't bother with a break in the middle of eating meals, but I definitely have a break after each meal.
The caveat of course is that I was well enough to even try this at all, but I can't believe it's taken me so long to even think of it.
Hopefully I've inspired someone