This mixing checklist is to use alongside the Pre-Recording Checklist. Naturally the checklist depends greatly on the type of music you are producing, but this one should fit most general types.

Kick drum should be in mono
Sub bass should also be in mono
Solo all layers of bass and check that they are working well together. If not, fix them now
In the bass - roll off any very low frequencies below 20-30Hz
Claps and snares - low cut anything below about 120Hz
For a good snare - get the ‘thunk’ around 200-400Hz; a good ‘crack’ around 2-3kHz and sparkle up to 7-8kHz
Audio clips - make sure to use fades to avoid any clicks and pops
Does any percussion need sidechaining to make it groove better?
Make sure to EQ your effects
To make some elements more interesting you can use Mid/Side EQ
For any specific band specific fixes think about dynamic EQ (for EQ fixes) and multiband compression to control power