Rosanna Davidson has a very nifty – and hilarious – trick for telling her twin baby boys apart

Don't knock it unless you've tried it.

She is a brand new mum-of-three after welcoming identical twin boys, Oscar and Hugo, seven weeks ago, a month shy her daughter's very first birthday. So I think it's safe to say that Rosanna Davidson has her hands full – and then some. Recently, the former Miss World shared a story on Instagram telling her many fans how she is even able to tell her two little boys apart on those days when she is feeling shattered from lack of sleep. Are you ready, twin mums? (This is too good!) Child-friendly, non-toxic nail polish. Yep, that's right. Taking to Instagram today, Davidson admitted that she can get confused between her baby boys and who is who – particularly if it's dark or if she's tired. But, she adds, a little bit of child-friendly nail polish, can help grately. The model admitted: "I have a little bit of a confession to make. When we're tired or it's dark in a room it can be difficult to tell the boys apart. "They are absolutely identical apart from the fact that Hugo here is slightly smaller than his brother Oscar. "So I came up with a way to tell them apart as recommended by other twin mums.

The mum-of-three laughed about what her sons might think of her interesting method to tell them apart when they are older:

"He'll probably be pretty pissed off with me when he's older but I bought some special toxic-free child-friendly nail polish to paint on a couple of Hugo's fingers in this very fetching turquoise colour. "Just in case if there's any confusion, we can tell our sons apart." Well, how clever is that? Any other twin mums who have had to use this method?