"Dear designers, I have a waist. Your shapeless clothes make me look like mama cass. Please stop making your waistbands on trousers and skirts the same dimensions as the hips. Women are not cylindrical."
That is my biggest bugbear. Also:
3/4 length sleeves - on blouses and T-shirts - the sleeves ride up if you try and put a cardigan on. And 3/4 length sleeves on cardigans and jumpers are utterly pointless. If I am cold enough to require a cardie on I want something that covers my wrists.
Low cut tops. I am not well endowed and the shops are full of low cut tops. All they do is make me look even more flat chested and feel self conscious.
Low rise jeans. They are so blooming uncomfortable. They cut into my widest part and always feel like they are slipping down. I hate having to hitch my jeans up all the time.
Those ridiculous very high heeled boots with cut outs to look like sandals - why?
I don't have bingo wings and can wear sleeveless tops. I can also wear maxi dresses (and have been complimented when I wear mine)
On my wish list is:
Some school trousers for my tall and skinny daughter. Adjustable waistbands make her look like she is wearing rompers.
A decent range in casual skirts that don't look like tablecloths.
Standard dress sizes everywhere. So a size 10 in M & S is the same as a size 10 in Next. And also M & S please standardize your sizes within your store. I have clothes ranging from a size 8 to a size 12 all from M & S.