Do this to every piece of clothing where buttons aren't sewn on by hand. I learnt the hard way by losing an Alannah Hill button at the dry cleaners, and damn she chooses some impossible to replace buttons. *cries*
Don't know if your buttons are sewn on by hand or not? Chances are they weren't so do it!
Short of taking the buttons off your garment and sewing them back on yourself, the quickest way of helping them stay on is with a bottle of clear nail varnish. Open your garment up flat, with the backs of the buttons showing in a neat little line, then take your nail varnish and dab a tiny amount onto the stitches holding your button in place. Leave to dry, For the love of lambs do not put it on while it's drying.
If you trust yourself enough, it's not a bad idea to put a tiny amount between the button and the front of the garment, pinch the fabric so the button is sitting atop, and dab a tiny amount on the threads in between. leave to dry, Definitely do not put your garment on while drying, or you'll risk the button hole sticking to the varnish, Big mess.
