We have been a family in transition for the last year and a half and so our classroom has had several temporary homes.We will be moving one last time to our new home on October 5th (Praise the Lord!).
Thus our classroom organization has all been temporary in the three rental homes we've occupied.
Yet, despite our transitory circumstances, there are a few ways I've found it really helpful to keep our supplies organized and accessible. 
We have our "workbox drawers" where I have often kept all the necessary teachers manual's and supplies for each subject organized, ready and accessible. Right now, since I have a toddler who likes to empty drawers, my manuals are all conveniently accessible in their crate.
For my son who is an advancing beginning reader, we have a word wall to help him practice his vocabulary and spelling words. For my three year old, we have his letters up on the wall as well. For both, we just used sticky tack to stick them up.
Because of our temporary circumstances, we only have one bookshelf in our classroom, but I keep it well stocked with library books for our current subjects.
We have a small math station, a religion "Mass/Prayer Corner" and a small table that is easily moved and used for projects.
Plastic shoe boxes keep our various supplies organized and accessible but not easily dumped by my toddler.
To organize their supplies, each child has a crate by their desk to
hold all of their school books, binders and supplies (our desks open on
top so we don't use them for daily activities, just for storage of
special projects).
To keep all of their papers in order,they have a binder where everything we save for the year will be kept. I'll talk more about the binders as I explain what we are doing this year for each subject.
Much of our organization will change or be adapted to our new homeschooling space once we move but the beauty of our current set-up is that everything is easily transferred to a new location.
