It feels so inefficient that when I want to just get a slice of bread I have to completely untwist the tie on the bread bag, untwist the bag, get the slice out, twist up the bag, wrap the twisty-tie around it, and twist it all back together.
The disposable bread bag clips that come on some loaves are a little better, but they're not on all bags and it seems that there should be something even quicker and easier.