Just pile all the stuff up at one corner or as best as you can.
They can sort their stuff out in their own time.
Messiness in a public place (such as a garage) is a big no-no.
In your own bedroom, that's fine as its your room to do as you see fit. But in a kitchen, garage, bathroom, telly room? That's just laziness and being impolite.
It's difficult. We're working at the same company.
Now, let's split this up.
Roomie #1: my boss at work, we're close friends, too. He's been a cook for quite some years, so he's messing the kitchen up all the time. He doesn't always (read: not often) clean up after himself, tho. We're more or less ok with that since he's often cooking awesome stuff for us. He's the ultimate nerd too but that's ok, he's cool.
Roomie #2: sitting near me at work, friends as well. Great minds think alike, so we often share opinions and rarely disagree - however, she's a girl.
Roomie #3: her boyfriend, he's like my twin-brother. Sadly, he doesn't have a job atm. He's trying to clean and run the household while #2 and myself are at work.
Roomie #4: we like to call him "Slavemaster". An extremely slow-thinking and slow-moving person. You can clearly see him thinking about things. His "brain lag" is actually not even lag anymore, it's some sort of disconnection. That slave thing is probably the only time in his life he'll ever have the power to tell someone what to do.
Roomie #5: wife of #4. She's slow-thinking, slow-moving and is seeing herself as "slave" of her husband. I read her blog once and was confused for the next week. She's not even allowed to decide on her own what to wear. But that's cool, she's afraid of making decisions. Yet, she wants to be team leader at our company (because her master told her so, it's nuts), which would mean she'd take care of her team of 10-15 employees.
Roomie #6: me, I'm a nerd, too. However, I like to go out aswell.
Now, let's rate their behaviour regarding cleaning the house:
#1 - 6/10
#2 - 9/10
#3 - 10/10
#4 - 0/10 (he's the master, not the slave - lest we forget!)
#5 - 1/10 (she does what he's telling her)
#6 - 8/10
Don't get me wrong: those ratings also include their will to put dishes into the dishwasher...so the really easy things. Not even those simple tasks are being accomplished. Stuff is being left on top of it instead of opening it and putting it into the dishwasher. That might take 5 seconds longer.
Now, the stuff in our garage belongs to:
#1 - 20%
#2 - 10%
#4 & #5: 80%
Sadly, we can't even get them to clearn their own room. Hence why we couldn't clean up the garage by now. #2, #3 and myself are actually running the house. It would've been fallen apart by now if it wouldn't be for our work. I mentioned all the details so that you understand the issue at hand. It's not done if I'm putting it into a corner...that'll only lead to a fight.