Was thinking the other day for no reason at all about software that I've actually enjoyed using over the years, and I had to think really hard on that. I'm probably showing my age and romanticizing things, but Winamp definitely meets that bar. As does the IRC client mIRC. Probably what I liked most about these programs is while they got frequent updates, their basic functionality remained the same, familiar, and very usable. You know, the opposite trajectory of most modern software. Also, they were so familiar I could use them with my eyes closed.

Is there any software that fills you with positive thoughts/associations? Why?