Well, I don't have much of my early recordings (late 90's, Tascam 4-track cassette, using an SM57 for vocals, 3 SM57's on drums and an AT Pro 25 for kick through an old mono Shure mixer, and guitars straight into a Digitech
RP20). I remember having some fun with backwards stuff though. Also, I remember recording an Art Bell show once and fading UFO descriptions in and out of one of my songs. It was purely coincidental, but the timing was perfect, so I did it.
My biggest improvement has been in tracking and production, especially in mastering. Tracks from my first "album" got played on the local rock station, and they were clipping so bad it was pure distortion. I think I recorded from my VS1680 out in stereo to a SoundBlaster, then mastered it in Cubase VST with the "Magneto" and "Loudness Maximizer" plugins. As you can imagine, I basically clipped the hell out of it.
I moved from a Roland VS1680 to a full Sonar 5 setup now. I'll try to get up some tracks as I just started recording my new band. Gonna be fun.