Pinched harmonics
Wammy bar masterbations
sweeping
bending
vibrato
speed picking
hammerons and pulloffs (including chords)
These are what I use everytime I play. I'll tap from time to time but it's not a strong point of mine or a part of my overall playing style. And usually when i do tap it's tapping out chords like Tony Macalpine would do. I learned that style from an instructional video of his that I bought and I'm still not even close to as good as he can do it. I'll even dabble in using the slide from time to time and I still suck at it...lol :-)
I started learning guitar because of Randy Rhoads..but Yngwie J. Malmsteen is my biggest influence.