1,000. Wearing Shoes on Yom Kippur
Shvisas Asor 3:6
If a person is going to greet his teacher, his father or one who surpasses him in Torah knowledge, or if one is going to learn Torah in the study hall, he is permitted to pass through water that is neck-deep without any hesitation. After performing the mitzvah for which he set out, he may also return home by way of the water. This is because, if one were not permitted to return, one would not go, which would keep the mitzvos from being performed. Similarly, one who goes out to guard his crops may pass through water that is neck-deep without hesitation. This is only permitted so long as he does not stick his hands out from under his clothes as one would do on a weekday (which serves as a reminder not to wring out his garments).
Shvisas Asor 3:7
On Yom Kippur, one is not permitted to wear a leather shoe or a sandal, not even on one foot. One is, however, permitted to wear a sandal that is made of reeds or similar things. Similarly, one may wrap cloth around his feet because the ground is hard on one’s feet when one is barefoot. While children are permitted to eat, drink, wash and anoint themselves, they should not be permitted to wear leather shoes on Yom Kippur.