Holidays in the UK: tips

Local currency can be exchanged not only at specialized points and banks but also at post offices.
If you pay for goods or services with a bank card, you may incur additional charges.
It's advisable not to drink tap water in the UK, as it's generally considered unsafe due to potential contamination.
Fruits sold throughout the country may contain high levels of pesticides.
The UK electricity grid operates at 240V, and all sockets are three-pronged, so you'll need a special adapter for your devices.
In restaurants and cafes, tips are typically included in the bill (around 10-15% of the order). If not, it's customary to leave a tip anyway. Cab drivers usually receive a tip of about 10% of the metered amount.
Never leave your belongings unattended, even in a rental car.
Buses are a convenient and affordable way to get around the city, as taxis can be quite expensive.
When going for a walk in UK cities or on a tour, it's best to carry only the essentials. Cameras are best worn on a strap.
If you're not a fan of pets, it's best not to demonstrate it in public, as UK residents often have a strong affection for their pets.