Hi Sarah- I have used baby signs on my 3 children and it worked very well in getting them to communicate with me much earlier than expected, but I never used it for potty training. I am proud to say that my 2nd son was completely potty trained by 20 months. That's a big deal, especially for a boy! My oldest son, who is now 4, was potty trained at 30 months. The biggest trick that worked for me, is I rewarded the boys with a "Poo-Poo" "Pee-Pee" Party! They thought that was hilarious...every time they went to the bathroom and did not go in their pull-ups, we celebrated at the end of the week with cake, or cupcakes, and ice-cream. I have the funniest pictures from that time. It worked very, very well for my 2 yr. old. Also, I took off the pull-ups for the majority of the day and let them run around naked. They remembered more to use the toilet. Of course, make a big deal out of every attempt to use the toilet and they had stickers and posters in the bathroom. When they did not make it in the bathroom, we did not scold them or make them feel bad. That was critical. Also, we used the little plastic training potties vs. the big toilet as the boys felt they may fall in. When we moved to the big toilet, we had stepping stools so they could rest their feet and not feel like they would fall in. Don't forget to use Cheerios as aiming devices for boys!! It works. Hope this all helps and you are done with diapers in no time. V.