Parties can spell trouble with a capital T for your waistline: crisps, biscuits, nibbles, peanuts and other saturated delights washed down with sugar-laden cocktails can send you into calorie overload before you're even past the apéritif stage.

Check out our guide to partying without pigging out and ending up guilt-ridden and hung over. You don't have to deprive yourself to avoid piling on the pounds - you just need to make a few wise choices when the drinks and snacks are passed around.

If Scarlett Johansson started sniffing round your other half you'd obviously have trouble keeping him on the straight and narrow, but she's not the one you want to watch...

The women in your own circles are the ones to keep your beady eye on: they're far more likely to cause problems between you and your other half, and you're less likely to suspect them of trying to scupper your relationship.

Take a look at our guide to handling the mother, the ex, the best friend, the work colleague and - yes - your best friend.