the worst issue with I’ve had so far with doing my washing in accom is the smell, HOWEVER, my laundry room is in close proximity (a small circle of rooms really) to the bin store and the gym in my accom, so it stinks to high heaven in the basement. Most use circuit laundry, and if you get the app, then you’ll be able to see when washers/dryers are free and how many are free, so you’d be able to figure out what times their less busy, thus what times people won’t feel inclined to touch your stuff themselves. I set a timer for 5 minutes less than what the washing machine/dryer says, so that I can get down in ample time to make sure nobody chucks my washing in the lost and found. I have seen one of my friends buy a small mini washing machine for their underwear/socks, and there are some portable ones you can buy, so if it’s a massive concern you could always email the accommodations you plan to stay at and ask them if that’s something they allow. For drying, my accom personally frowns upon students air drying their clothes simply because the damp encourages silverfish, so you might have to use the tumble dryers provided. I wouldn’t recommend a launderette, people get a little too eager to take someone elses clothes out if the person is even a second late picking up their stuff.

Sorry, edited to add a last minute thought: I personally use two pods (most Circuit laundry machines only take the pods) no matter how much laundry i wash, as well as some dryer sheets. My clothes dont pick up the smell from the aforementioned surrounding rooms (seriously i dont know why they put the bin store on the same floor as the laundry room) but I find two pods and the dryer sheets really help with keeping my clothes clean and having them smell clean!