Make sure the following three delays are in easy reach when you are composing, mixing in your DAW. It lays some polishing over your sound in the mix without actually hearing the delay.
In Ableton Live, I put the below delays set-up in my default template as Return Tracks (each track can send an amount of its sound to these tracks to add the delay effect).
- Haas Delay: delay of 35 ms
- Short Delay: 16th dotted note Delay
- Long Delay: 8th Note Delay