Oh man,
I do remember. I had a 1970 Schwinn Varsity I rode everywhere. Never
touched a thing on it except to change a tire. Now... I went through a zillion seats
over the last several years trying to get comfy.

Anyway, you will prob start trying saddles soon. I like Brooks, but they weren't
quite right for me. They work, and well, for most. I use a Selle AnAtomica Titanico. The link takes you to a video showing how they work.

http://www.mcmwin.com/commercial%20portal.htm