HPF Bass at 79Hz (learned this tip from Danny). I've been using a Q of 1-ish.
HPF Kick at also: oft as high as 50Hz: Q-slopes are different (by ear).
Keep low energies 'contained' to allow massive mean and peak volume increases in the mids and highs, IMHO.
Manually comp both the kick and bass tracks ... every spike with a unique compression ... to 'fit with the mids and highs ... to command your mix.
Allow kick and bass to rule the non-vox sections and be louder there.
If affordable, try different limiters/maximizers ... especially if you are a self-masterer.
If you are concerned with song-maximization for ultimate dance-loudness (aka hip hop or loud metal) ... consider the Slate Fg-x Comp/Limiter (used judiciously of course) ... either alone or after another top-quality buss limiter.
But if bass and kick tracks are to be more artsy than loud ... forget the Slate for those sections; I'd use other quality maximizers to get a scratchy idea of the master.
Applying tape emulations may help for bass and/or kick ... but I'm not fully convinced.
Kick drums always require fx help to enhance the subs in my mixes ... and to discern it from the snare. A tinny kick is not my friend.
Personally, I prefer the kick to sound like a heart-beat: That always involves enhancing the lows with a quality sub-equalizer or sub-fx. That holds true for most of my attempted genres.
The kick usually succeeds (for me) as the lowest EQ of everything. I've tried making bass lower in many mixes (and sections) ... and I've failed oft.
While kick rumble may have forgiveness ... bass rumble is my sworn enemy.