I have a tall wardrobe 50cm wide which I keep everything in neatly.
For client visits, if I am taking the couch I use the pocket in the front of the couch.
If I take the lafuma for my reflex (answered your q in the end) or other treatments I use a bag I bought from WHSmith for a tenner, has lots of compartments, one for my lotions and towels, another at the back for paperwork and others for pens, I keep my purse and keys separate for hygiene reasons, so this kind of does it all.
For EFT clients or those where I don't need equipment I have a small bag thing from WHSmith again (ok I admit it they had a sale on and they both were just what I was looking for) which incorporates a clip board for my paperwork and a little compartment for pens and such.
When treating at home I use a small stool as a table with a tray of goodies on it, the wipes etc.. and the bin nearby so I can chuck stuff right out as I go.
I tend to leave lotions and such in their own containers unless it's one of my own blends, this is so the client knows exactly what I am using if they are interested. They can check the brand and ingredients then.