Online car insurance provider American Express has come up with a catchy mnemonic to help you figure out if you're fit to put pedal to metal.
According to their new road safety awareness campaign, all you need to remember is DRIVE.
'D' is for drugs, both the recreational and prescription varieties. You're reminded that all sorts of medication can cause drowsiness or impair your reactions some other way, so check the label before driving whatever you're taking.
'R' is for rested. Tiredness is responsible for a frightening number of crashes on British roads, and is a contributory factor in many more - so if you're not bright-eyed and bushy-tailed enough, get a taxi.
'I' is for inebriated, both on a night out and the morning after. Many young drivers don't realise how much alcohol is left in their system even after a kebab and a good three hours' sleep.
'V' is for vital, and like the "Is your journey really necessary?" posters you see at the Imperial War Museum and others it asks you not to drive without good reason.
'E' is for elements - that's British weather. Anyone who can still remember their stopping distances will tell you what a world of difference a little rain or ice can make in terms of driver safety, and you've got to be extra careful when visibility is poor.
Mike Page, spokesman for the online car insurance experts at Hoot, had this to say: "Amex get ten out of ten for the idea of using an mnemonic to help keep drivers safe, but the words they used leave a little to be desired.
"It seems like 'vital' and 'elements' have been chosen just because they fit in, and 'rested' and 'inebriated' really don't sit well next to each other.
"Educating drivers is a very laudable aim - particularly as it can lead to cheaper car insurance premiums - but I just think the project could have done with a little more time on the drawing board," he added.