1. Fromage fans, your melted cheese dreams have landed. The Cheese Bar in Camden hosts a grilled cheese sandwich battle today. A £20 ticket gets you five toastie tasters and a boozy drink.
2. Gather your unwanted garb for a ‘swishing’ clothes swap in aid of the Anna Freud National Centre for Children and Families. Entry to the Clothes Swap Extravaganza is £4. Find your fellow swishers at the Wilkins Building, University College London from 5pm.
3. If you’ve ever wandered through Berlin’s Mauerpark you may already be familiar with Bearpit Karaoke, which is coming to the capital for the very first time. Join the guerrilla choir for a sing-song in Vauxhall Pleasure Gardens at 6pm