For everyone who feels like they have to ask before they help out: What is your deal?  You just ate--logically, there are dishes to be washed and a kitchen to clean.  You live in a house that has floors, windows, etc., which all need to be swept/vacuumed/washed.  You wear clothes, which will need laundering.

Naggers nag because naggees aren't connecting A to B.  If you wear it, live in it, or use it, it needs maintenance.  Anyone who has aged out of early childhood should know this.  Waiting until your partner/spouse/parent/housemates tell you what needs to be done means that that person is still putting all the mental and emotional energy into orchestrating chores, which means that even if you're doing half the physical work, they are still doing more work overall.  It's not the work itself that is the biggest sticking point, it's the lack of initiative.