I can't imagine how I used to work with conventional irons anymore. I went 'digital' about 10 years ago, and was analog temperture controlled for a good few years before that.
P.S.
With modern coated iron bits, you're best off
not cleaning them with a damp sponge, but instead using the little blocks of cleaning compound like
thisIt might look expensive but lasts for a
very long time, and will clean almost anything off the iron.