I didn't mean to pour cold water on fantasy shopping!! Sorry!!!!
However, if you keep a look out you can really find some quite cute vests in Sainsburys and Tesco sometimes (really!) - sometimes they are not attractive, so you have to wait for the next batch of patterns to come in. A bit of practicality though, even if you really like one pattern probably best not to get consecutive sizes. Otherwise, when you have just started dc into the larger size but are still trying to work your way through the piles of washing, dh will take the opportunity to (surprisingly) dress dc or change and redress dc and find next vest on pile which happens to be the smaller size and therefore constrict nappy space and hardly do up - then, of course, this ends up in the washing to give him the chance to pick this one vest that is too small to put on next time (and so on.....) If you have different patterns it is easier to point out that you've changed the size.
I've been smug most mornings this week. Normally dh gets to have a gentle start to the day as his job is to walk the dog while I get myself and ds up and breakfasted. However, TW and today, ds has specifically asked for dh to get him I while I walk the dog. This morning we had the full histrionics - wanted to wear pj bottoms, not trousers, wanted to watch BBies, didn't want socks on, didn't want to clean his teeth.... Meanwhile, I went out for a nice walk and said hello to some other dog walkers we regularly meet on the field.