What do you use delays for? Thickening? making wierd effects? I never use them even to thicken, maybe that's because my delay is too long. Whats up world!?
Sometimes I'll use a delay in place of a reverb for things like slap echoes off of walls or buildings. Easy to achieve and doesn't muddy up the track.
Just like birdhousesound I use multitap delays all the time for adding depth to ambiences. But additionally in every Dolby E session I mix I have to use delay as just that, a signal delay to align the PCM stereo Mix with the Dolby E stream.
In sound design, I use delay to thicken, and occasionally for the obvious delay. In music, I'm a delay junky, and use it for EVERYTHING from dub effects to long, evolving, soundscapes.
Just like the others, I use it on every SFX and Atmos to give a different feel or extension. I'm a big fan of H DLY as it has a great sounding filter section.