From the eternally inspiring Sue Harmsworth, founder of ESPA, who’s in her 70s: ‘I don’t think of my age. Instead I focus on goals and moving forward, and exercise is part of that – strength work and stretching to maintain my muscle mass, bone density and posture.’

We don’t counsel home haircutting, no matter how desperate the times are. Pin it up! Tie it back! Go for grips and clips! But if that’s come too late for you, and your hair looks like you took the strimmer to it, pull it back into a simple, low ponytail (assuming it’s long enough). If it’s layered, wear it wavy or curly, reaching for the emergency tools of round brush, rollers, curling iron, and creating something with texture. If you have short hair, rub some pomade between your palms, skim through hair and tousle it, so that it looks messy. And if it’s truly awful, wrap your head Jackie O-style in a scarf.

Cleaning materials have been – well, cleaned out from many supermarkets. You can turn to good old sodium bicarbonate for many household tasks; a solution of two tablespoons to a pint/500ml water makes a good, non-abrasive cleaner (and an excellent deodorising fridge cleaner). For a blocked sink, pour a teacup of bicarb down the plughole and the same amount of vinegar; let it stand and fizz for 10 minutes.

If you’re currently working from home, make sure your workstation is set up properly. Don’t think you can get away with a dining chair at your desk or kitchen table; typist’s chairs are really very affordable at Amazon and your company may well cover the cost of buying one. We’d say it was still worth the investment – not least because it’s almost impossible now to see a chiropractor or osteopath, to put a bad back right.

If you have acne, avoid deep conditioning your fringe or any hair that touches your face.

Even if you don’t think you need it, choose a ridge-filler as your nail base coat, advises super-manicurist Deborah Lippmann. ‘I always use it for photographs to fill in micro-ridges.’

Side-sleeping, according to experts, seems to be the best for spinal health. When you feel ‘nothing’ physically when going to sleep, then you’ll know you’re in the right position. Ideally, have your shoulder on a flat pillow to prevent your upper body rotating forward or backward. (A regular pillow is fine.) Put another pillow between your knees and ankles (we use a long pillow for this, which does both). Adding pillows to knees and ankles prevents rolling forward or backwards, twisting hips and shoulders. If ears, shoulders, hips and ankles are in a nice straight line, you’re good to go.

Unruly brows? You maybe don’t need brow mascara. We’ve found a slick of lip balm does the trick nicely.

Some advice from Ilāpothecary founder Denise Leicester, on de-stressing yourself – and your skin. ‘In the evenings, eat light, soak in a magnesium salt bath (which helps with adrenal fatigue), drink chamomile tea, get to bed early and focus on remaining calm. Save your stress for the day, when your parasympathetic nervous system can deal with it.’

Make the use of this downtime to go through your make-up drawer/stash and a) play with things you haven’t used in a while, or b) de-clutter. We’ve probably all got more stuff than we need, and for us, creating order out of chaos (in that drawer or pretty much anywhere) feels helpful, right now.

Great fashion (and beauty) advice: never wear a white that’s whiter than your teeth.

If you’re feeling stressed (um!), organise your handbag. (Chances are you’re not using it right now.) Actually, you should de-clutter your handbag, tote and wallet at least once a week – we promise you’ll feel better for it. On weekends we decant a debit card, a credit card and a small amount of cash into a zip-up purse and can dispense with a handbag altogether. Our shoulders like us for it.

Adding some colour to your breakfast is a great way to boost your intake of emergising vitamins and minerals. Go for a combination of wholegrain carbs, protein and a little fruit. For instance: scrambled eggs on wholemeal toast with tomatoes and mushrooms, or porridge served with fruit. They’ll keep your feeling full for longer, provide energy – and keep you away from the biscuit tin, at elevenses.

Don’t be tempted to over-exfoliate. As superfacialist Alexandra Soveral observes: ‘All those layers are there for protection. If your skin is healthy, its acid mantle – which is a blend of perspiration and sebum – has a pH level of around 5.5 and it thrives on dead and dying cells. Unlike your gut, your skin should be slightly acidic. If you start sloughing off its top layers, you’re compromising it as an environment in which good bacteria can form.’ So: go gently. And occasionally, is the exfoliation watchword.

Wisdom from our beauty editor colleague Kathleen Baird-Murray, in her final Financial Times column: ‘The fastest way to look old is to live with stress. A case in point – recently I caught up with the founder of a famous beauty brand who sold her company a year or so ago. I barely recognised her because the stress of running a successful business had been huge. Her short-cut to looking magically 10 years younger? “Yoga. I have time to do it properly now.” To which end I’d like to add that meditation is pretty effective, too, but you have to commit, and find a method to suit you.’ Right now you don't need to be running a business to feel the huge stress – but in our opinion, the yoga/meditation advice is more relevant than ever.

Invest in a high-quality nail file. The finer the grit, the kinder it is to your nails. (Yet just as effective.)

We’re all learning to avoid touching our faces. But if you’ve greasy hair, keep your hair out of your hands, too: sweaty palms and hand cream residues will make your hair more greasy.

A tip from our facialist old friend Eve Lom, about stopping a spot before it starts. ‘Use a muslin cloth soaked in hot water, then gently pressed onto the area as often as possible, to help disperse the “inflammation”’.

If you suffer from milia – small, seemingly fatty white lumps under the surface – don’t ever be tempted to squeeze them to get rid of them. They’re not like blackheads, and they call for professional removal by a dermatologist or a beauty professional, with a milia surgical needle.

We love this quote from sixtysomething supermodel Mouchette Bell: ‘What I love about make-up is that it has nothing to do with age; it’s about what suits you. I’m all for being dramatic with something like a strong lip. And the fact that fashion is including older people will affect how people perceive them – just to be seen as happy is such a positive influence.’