I am doing elimination communication with my 3 month old baby. I started reluctantly because my older daughter had rash issues for the entire time until she was potty trained. We tried literally everything we could think of to solve her rash issues, but nothing ever worked until those stupid diapers were gone. My baby was starting to have the same issues, and because I didn't want another 2 years dealing with rashes, I decided I needed to look at something besides conventional diapering. For me, it was out of necessity to do EC.
I thought that EC would be difficult and messy, but I found that my daughter will cry and fuss before she has to eliminate. I discovered that by chance one day when she was laying naked on a prefold diaper and she cried right before she peed. I started paying close attention to see if she did that every time-- and she did! Once I discovered that, I started offering the potty before I tried other means to soothe her cry. Now that we've been doing EC for about 6 weeks, I'm better able to distinguish her cries and I can tell the difference between them, based on not only her cries but her body language as well.
One thing that you do with EC is you begin associating a sound with going to the potty. We use a "pssss" kind of a sound, which is really common with families who practice EC with their children. When we were first starting, I made the sound only as she was peeing so she would begin to correlate that sound with elimination. After a couple weeks, I started making the sound as soon as I took her to the potty. She now will go immediately after I make that sound, assuming I'm reading her signals correctly, that is! The only downside is now I associate that sound with peeing as well, and I really have to kegel to make sure I don't go, too!
We do try to potty while out and about, but I'm not as diligent about watching her signals to make sure we always get to the potty on time. That, and I am a little embarrassed about EC'ing in front of other people. But I do take her potty in public restrooms all the time, and I try to keep her dry as much as possible. We have managed to have several outing where she has stayed dry the entire time we're out, thanks to her clear signals and my diligence to respond to her cues immediately.
I don't think it would be any more difficult to EC on vacation, as long as you're paying attention and responding to cues in a reasonable manner. Anything can be a potty if you need it to be. If you're in the great outdoors, EVERYthing's a potty!
EC is not potty training the parents. It's all about learning how to communicate with one another to take care of the baby's needs. I see it like I see feeding my baby-- she tells me when she's hungry, so I feed her. She also tells me when she needs to eliminate, and I need to respond to that as well.
I found that EC wasn't as difficult as I originally envisioned. I needed to take my baby's diaper off quite often anyway, so this just came along naturally. Even though I was a reluctant starter, I now enjoy EC and plan to do it with any future child I have, even if their skin is totally healthy!
The BEST thing about EC-- my 2 year old is potty trained, and because her little sister pees on the potty, she is not at all interested in peeing in a diaper anymore. I think she may have reverted to wearing diapers if her sister was peeing in diapers all the time, but she thinks it's pretty cool that baby sister pees on the potty. She actually will pee in lil' sis's potty bowl or backward on the potty because that's how lil' sis does it.
I highly recommend anyone interested in EC to read "Infant Potty Training." It is my EC bible and I refer to it often. I also love the website www.diaperfreebaby.org, and there is a great yahoo group on eliminaton communication with hundreds of other parents doing EC with their children. It's great to know you're not alone out there. I don't know anyone at all who has done EC in real life, so the support is nice, even if it's only from people you've never actually met.