I have used save our sleep loosely and yes it works!
You DO NOT HAVE to use it strictly. Some people find being strict with routines works for their baby and their family, some find loose routines work, some find watching their baby and using his/her cues to build. A routine works and some have none what so ever.
They key component if her method is the cry it out and timing. Catching your child when they are ready to sleep, listening to their cry and learning what they are telling you and making sure your baby's needs are met ahead of time.
If your not normally home for a sleep time TIZZIE has a solution in her book. I think its the chapter on having a toddler and baby. There are answers for getting around school runs and appointments, holidays etc.
I used to put dd in the stroller and go for a walk for her first nap each day. I could drive to town and walk around getting my shopping or just get some excersise in.
As dd got older I still have her in a TIZZIE routine just slightly later times that suit her.
OOOHHH... INTERNET FIGHT. WHAT ARE YOU GONNA DO? CAPS LOCK ME TOO DEATH?
(Noddy's not fat ffs!)