Another aspect of the idiotic "we don't know what your tax is going to be" system (they do know it, actually) is that prices will typically end with .99 and the

Another aspect of the idiotic "we don't know what your tax is going to be" system (they do know it, actually) is that prices will typically end with .99 and the tax will push it over the next dollar and cause a bunch of change to be returned, instead of a single penny.