Mine is dirty dishes in the sink when I come home from work. My kids have learned that they had better load the dishwasher before I get home or things go downill from there! I've even come in the back door and heard them furiously loading the dirty dishes because they saw me pulling in to the driveway.
We call spaces that set us on edge "hot spots", and every home has them - unless you live alone and are perfectly happy with things as they are. How do we change a hot spot into a non-irritating, organized space? First we identify the spot - it took me several weeks to figure out why I was so crabby some nights. Once I realized it I enlisted my family's help in solving it. Often the hot spots affect us subconciously - we're so used to seeing the clutter we don't realize the weight it holds over us.
When you know what your, or your living companion's, hot spot is, have a conversation about what can be done to improve it. Small, incremental steps are key to tackling any organizational project vs ripping everything out like a tazmanian devil and being too overwhelmed to finish it.
Good luck - and watch out for those flying monkeys!
P.S. Got a hot spot dilemma? Post a comment below and we'll solve it together.