Megan- Hi and welcome to Airbnb hosting.
When you are inviting strangers into your personal home you have to realise it is not like having friends 'house-sit' and you do have to set your house up to accommodate your guests.
Here are a few points that it might be wise for you to consider.
1/. It is not a good idea to put 'post-it' notes all over the place telling guests what they can use and what they can't. Guests get annoyed about that, they have paid you money and you are continually telling them what they can and can't do....not a good look!
You can make up a couple of nice fancy scripted laminated notes for stategic areas like the bathroom so they do not look as though they are a specific guest demand which could say..... 'Please help leave the bathroom the way you found it'!
Unfortunately I can't at this time show you a sreenshot of what I am talking about but there are nice pleasant ways of doing this.
2/. Guests will need a vacant cupboard to hang long things, and a drawer or two for folded clothes with a 'Guests resource' label on it! Try to re-organise your own things to make sure the guest has this as a minimum.
3/. If you offer your kitchen in the listing expect that guests will use it. Once again allocate a cupboard for the guest and a shelf in the fridge. If there are things in the fridge you do not wish guests to help themselves to, put baking paper over the contents of that shelf with personal written on it. Most guest will respect that!
I also invested in a cheap roll of plastic bench protector which is sufficiently durable to stop knives from marking the kitchen bench. Although clear, it has a satin finish and does not detract from the appearance of the benchtop....it simply protects it! It cost less than $40 which as I am sure you will appreciate is nothing compared to the cost of replacing a chipped kitchen bench!
4/. If you do not wish guests to use your laundry, lock the door, or if that is not possible buy a power cord lock, pull the washer cord from the power socket and attach the lock. That will then stop guests from using the machine. Once again I would like to include a screenshot of the lock but at the moment that is not possible here!
5/. Someone once said to me when I started hosting..."Don't put anything out in there that you are not prepared to loose"! Put away your personal things and anything that may be of significant value to you and keep other things and ornaments away from accidental damage. Push vases to the back of the shelf, to the centre of the table. Remember that you are used to your space, strangers are not and will be 'clumbsy' in the way they move about. They are not trying to be, it is just foreign to them and accidents will happen.
Look, I could go on and on but experience will be your main guide!
Don't assume anything Megan, if you allow for the worst you will be pleasantly surprised at how hassle free your hosting is. If you you think it will always be a bed of roses you will be disappointed!
I hope this is of help to you.
Cheers......Rob