Using Value Converters in WPF without having to define them as resources first

Question

Is it possible to use value converters without having to define them beforehand as resources?

Right now I have

Answer 1

In the case of singleton-type IValueConverters (e.g. they don't need any state from the current binding instance) I use static converters, i.e.:

Converter={x:Static SomeNamespace:SomeConverter.Instance}

There's also a great post by Dr. WPF on using a markup extension to make it cleaner inline here.