Right, so it's my first year back at work and I'm an assistant in an infant class. My clothes need to withstand paint splatters, flying gobbets of snot, sitting on dusty floors, joining in with P.E. (heck - that came as a shock!), being tugged by small people anxious to communicate urgent news, and probable absent-minded writing on with whiteboard pen. Essentially, I need a teflon jumpsuit. (But not an actual jumpsuit because it would make my bum look even bigger.) I frequently have to sit on the floor and squeeze myself through the unfeasibly small door to the home corner: the not flashing of knickers is a critical requirement.
funny how the P.E. came as a shock but the flying gobbets of snot did not... 
Anyway, I am short (especially in the legs), an expanding size 12 with reasonable norkage (32D at last fitting - probably due for another of those). I am 40 and staring middle-aged spread in the face.
I think we can assume that patterned tops are good. Any other tips? And where shall I shop? Do not want to spend small fortune only for it to be Jackson Pollocked because I stood too close to the easel.
The winter wardrobe is fairly forgiving, I find, but spring is upon us and I'm a bit stuck. My SAHM wardrobe isn't up to the task!