Potty Training Blues

We have been working on potty training with Kylie for the last month or so. We really want her to be out of diapers by the time that number two comes along and time seems to be flying by. No one ever told me it was going to be this hard! Some days it seems as though she is really getting the hang of it. She even wanted to wear her big girl panties out to the store the other day, and with lots of precautions and a very worried mommy, she did a great job and made it there and home dry!!! Then there are days like today where I will continuously ask her to try and she'll tell me "NO!" and then proceeds to have an accident no more than two minutes later. ARG! I get very tired of changing clothes and cleaning carpets. I am hoping this won't last too much longer or I won't have much sanity left for number two!