I'm a big fan of Paul & Joe and I have to say this cute yellow bag definitely hits all the right notes. It's £20 from ASOS and I think the cat print is ever so sweet.
It's big as well, with spaces for brushes, zipped compartments, and is wipe clean, so all those powder spills can be tidied away easily.
Related: Cute Makeup bag of the week: The Wizard of OZ bag from Truffle Shuffle