I actually managed to clean out the fridge yesterday, and it wasn't QUITE as bad as anticipated...there were still some unfortunate smells, and I took out 3(!) bags of trash from all the stuff we put in there and never threw away...I feel like with the help of Habit RPG I can stay on top of it better.
I actually did a little more cleaning than that yesterday. UfYH tends to give the same advice over and over whenever someone has a challenge with a particularly messy room: Make the bed, pick up obvious trash, work on surfaces, etc. To the point where my house is starting to look less like one unmanageable mess, and more like a series of steps.