[kboman]

Two opposite sides of the delay coin to try out:
- mix the delay high (~50-75%) and the feedback at 0-ish, basically just giving you one delay. use tap tempo.
- make it as reverb-y as you can: low mix, kind-of-short time, a bit longer feedback.

(for ambient stuff, do the last one with a really high feedback, longer delay, and preferably with a long reverb and/or another delay. gets along great with volume swells!)

Getting to know your tap tempo and subdivision possibilities is a great way to get a lot out of a delay pedal. I find that just a random ~500ms, mid-mixed, mid-feedback sound like a lot of big name players use "for leads" does next to nothing for me personally.