We've been recommended by several professionals that we use Visual Schedules to help our 3y.o. DS with ASD. We've started using a home made systems, but we seem to be often unprepared as our week-ends can be quite chaotic and we also travel quite a bit. So despite my hours of printing and laminating I find it difficult to fully embrace the system since we don't seem to have the right card to hand or can't find it fast enough.
Our excellent SALT has recommended this www.asdvisualaids.com/links.html
It seems pricey but at the same time useful as it has plenty of cards to choose from and would make it easier to get started and organised. On the negative side, there is still quite a lot to have to carry with us, yet there will always be a need for more cards.
I also know there are several ipad apps, but I have not looked into them since we don't have an ipad (well, we don't have an ipad that works). The advantages of this is what seems to be unlimited range of pictures and not having to carry folders and cards. At the same time, there is always a risk of DS being distracted by other apps. ))
If you are using Visual Schedule, please let me know what you use/ what works/ how did your DCs take to it. Many thanks for sharing.