It's frustrating when you see yourself do "xxxx" and him do "x" (or hey, maybe it's vice versa). It's not necessarily a negative thing if you feel as though you're being appreciated for all your hard work or that there are times when you're only giving "x" and he's picking up the slack.
If you're always feeling as though you're bearing the brunt of the relationship and not being adequately supported or rewarded, then it might be time to have a discussion.
So, think about how you define equal and what the "split" is in your house? Are you okay with that or is there something that needs to change?