Ooh I love this type of thing...
Try wearing your tops, dresses and knitwear back to front.
If you buy enough hand wash only clothes and wait until you have a whole (delicate machine) load, it’s no more of a faff. Helps clothes last longer too.
Tit tape or simply sticky fixers can plug a gaping bust in a shirt or blouse.
Wunderweb helps you easily shorten the length of a top.
Expander buttons on bras and trousers can give you some extra temporary room.
If a necklace is long enough, try it doubled up as a shorter, two row one.
Use butterflies even on drop earrings so they can’t fall out.
Try old fashioned starch spray for a really sharp collar.
Change the buttons on a cardigan or jacket to alter the look.
A detachable collar or ‘dickey’ gives a jumper a different look. Good for large busts as no bulk.