Make up bag/trolley contents advice please

I have a large collection of make up now to be getting on with.
I have my trolley bag from roo salon, and I love it!

However what else other than make up do I need in my bag? It's a little empty at the min...

Got brushes a couple of towels. Hand mirror, cotton buds.... Any help much appreciated. Xx any thing you couldn't live with out or wish someone had told you about?

How about :

Brush sanitizer
Small bowl (I use it for wetting a brush when I need to) or water atomizer
Tweezers (hate rogue eyebrow hairs!)
Small sizes couch roll (more portable than the full size ones)
Pencil sharpener
Small pair of scissors

Think that's about it for now - I shall have a look through mine and see what else I've forgotten!

As well as make up and brushes, I think the following are essential:

Hand sanitiser!
Make up sanitiser (something like Beauty So Clean)
Disposables (mascara wands etc)
Cleanser
Wipes
Primer
Moisturiser
Fixatives
Mixing mediums
False lashes
Hair pins/band/bobbles/clips etc

Can't think of anything else off the top of my head, will update if something comes to me!

Some people like to have a colour wheel but i don't personally carry one.

Thank you so much ladies. I really appreciate it xx

Ok, I've just had a root through my kit and this is what I've got (I don't travel light!!):
Cotton Buds
Cotton pads
Wooden spatulas
Kirby grips
Hair bobbles
Hair band
Cape
Mixing Palette
Brush cleanser spray
Surgical spirit spray
Water spray
Hand gel
Alcohol disinfectant wipes
Wet wipes
Tissues
Couch roll
Mirror
Disposables (mascara wands, lip wands,etc)
Bin bags

I think that's it, other than my actual products!!

I have all cosmetics in my kit case, then I have a separate bag for all the junk listed above. I also have a portable chair in a bag, and my mirror lives in the zip pouch on that.

HTH