Not to sound dramatic or self-absorbed or self-important, but I have come up with a relationship hack that apparently no one has ever thought of before me. I base this evaluation on a quick Google search, so it's not scientifically accurate, but what the hell. I'll call it mine anyway and thus declare myself a maker of history.
This hack will effectively remove any bubbling feeling of resentment towards your partner, especially resentment that stems from feeling that you're contributing more than your partner to your relationship or to your everyday practicalities.
Here it is.
Always assume that your partner is doing more than you.
Regardless of how your chores and duties are actually divided, chances are that your partner feels that they're doing a lot, and belittling their efforts will not make them feel appreciated for all that they do.
Even if you never said anything out loud to them about your perceived inequality of effort and only thought about it in your mind, it will show in your behavior.
Therefore: always assume they do more than you, or that their contribution (whatever it might look like) is more than yours.
Appreciate their massive efforts and the fact that they do so much, and show your appreciation by increasing your efforts in turn.
RK out.
