Consistency is key. If there is something you don't want them touching and you can't put it away or out of their reach you need to physically step in. Take their hand off of whatever it is they're touching and say "no, don't touch". If you do this every time, they'll get the message. Distraction and redirection are still your best friends here so remove them from the area and distract them with a toy or some activity.
I have a group Potty training for Multiples. Feel free to apply.
I agree with previous posters: your twins will let you know when they're ready to train. Signs to watch for are: staying dry longer, waking up dry, telling you when they need a diaper change, going to a private spot to have a bm, and having a bm at roughly the same time every day.
Someone also once said "you can start training at age 2 and they'll be trained by age 3 or you can wait till age 3 and they'll be trained at 3".
at 8:26 PM on Dec. 14, 2008