Great advice! We've found having an arsenal of pants/underwear options is so important, especially when accidents inevitably happen!
We also had success with using a visual reward chart - our kiddo got to pick a new colour to add to their chart every time they successfully used the potty, which added some fun and encouragement. There's lots of ready-made potty training charts online too that have cute themes that might engage kids even more!
It's certainly a journey but keeping it lighthearted and positive helps everyone stay motivated!