It took me ages to find some candidates for this year that weren't off-shoulder and covered with frills or weirdness. Thought I'd share the ones I'm happy with (these could also be handy school run dresses
:
Zara striped - this is very simple and easy to wear. The 20% polyester is a shame but otherwise, great simple dress.
Zara tunic - again v easy to wear - maybe best for short people like me though.
Gap tank dress - also got it in navy marl.