I tested 42 water bottles to find the best for leaks, looks and sustainability: here are my favourites

Ditched single-use plastic bottles but can’t find a good reusable one? I spent two months putting dozens through their paces – these are the ones worth buying

A moment that changed me: I resolved to reduce my screen time – and it was a big mistake

I was looking for liberation from the apps, but quitting them only made my life harder and turned me into a man obsessed

The best walking pads and under-desk treadmills, tried and tested to turn your workday into a workout

Sedentary lifestyles are bad for us, but which under-desk treadmills and walking pads are worth the cost? Our expert stepped up to find out

The best vibrators, tested: ‘it could get an orgasm out of a cabbage’

From bullets to rabbits to wand vibrators, our sexual wellbeing expert demystifies what’s available, and rates her top 16 models (she tested 53)

Beat the heat: 14 expert tips for keeping cool in hot weather

As the weather forecast predicts temperatures above 30, experts share tips on how to keep cool, from what to wear to anti-chafing essentials

52 tiny annoying problems, solved! (Because when you can’t control the big stuff, start small)

Experts, Guardian readers and writers share ingenious solutions to life’s everyday irritations, from wobbly tables to persistent hiccups

The best water flossers, tested: seven models for that dentist-clean feeling

Floss without the faff with our expert-tested water flossers, from travel-size models to countertop jets

My life’s a mess. Will turning it into a game make everything better?

With two small kids and a dog to take care of, I often struggle to look after myself. Self-care apps promise to help – if you can handle the quests, magic potions and rainbow stones. I put four of them to the test

Is the Simba Hybrid Pro mattress worth the hype? I slept on it for three months to find out

This premium mattress comes with a chunky price tag. Here’s what impressed me – and what could be better

Otty Original Hybrid mattress review: the best hybrid mattress you can buy – and also one of the cheapest

This ‘bed-in-a-box’ mattress gave our tester her best sleep in years and it’s hundreds of pounds cheaper than some of its rivals