We've recently done ours.
If its a small space stacking your washing machine and tumble dryer is a good idea. If you don't stack them make sure the doors are hinged on the outside so that you can seamlessly move washing straight into the dryer. Put a drip tray underneath the washing machine before you slide it in and it will save your floor if you ever have a leak.
Jar next to the washing machine makes me remember to check pockets. Anything found is thrown in and becomes my property if still there at the end of the week.
Sink is always useful. We have a double sink and underneath in a cupboard we have two pull out laundry baskets, one for whites one for darks.
Drying rack is great and a good money saver. Drip rack over the sink is also good for delicate drip dry items.
Basket for each family member for clean clothes. easy to then just make then collect their basket and take it upstairs to put away the clothes.
We reused the cupboards but put new doors on and new handles. This saved a lot of money. We also added additional storage, you can never have too much.
Whiteboard/blackboard for scribbling down shopping lists etc (or abusive notes to children who cannot seem to understand that dirty socks do not just get thrown onto the floor)
Labelling the shelves has done wonders in our house for organisation but I accept that might just be me being anal and trying to train the boys in my house to put things in the right place.