Some days we're lucky to get into jammies at all! Either that or it's jammies all day. She gets really fussy about changing her clothes. Nappy changes are usually a battle too! She went through a phase of only wanting to wear a particular shirt a while back, that lasted for a couple months! We ended up buying her another one of the same so one could be clean.
I'm fussy over clean clothes myself, but as long as her clothes are clean-ish and she takes a bath I'm not too worried. I figure she will grow out of it eventually!