All UK adults are now eligible for the coronavirus booster jab and they don't even have to book an appointment.
So far, over 45 million people who have had both doses of the Covid vaccine can walk in to centres up and down England to receive the jab.
The scheme is part of the NHS's new ‘Grab-a-Jab’ campaign.
Boosters could previously only be given after six months, or 182 days, after your last dose. However, these dose timings have now been halved and reduced to three months between your second Covid vaccination and the booster.
Approximately six million people have already had the booster and 86 million vaccine doses have been given out.
So where can you get a booster vaccine? Here's everything you need to know...

Where can I get my booster jab?
You can now use the NHS online walk-in finder to find the most convenient site for you to receive your jab.
The walk-in sites are also available to children aged 12 or over to receive their first vaccine and you are eligible for a second dose eight weeks after your first dose.
The NHS notes that not every walk-in site is available to give first doses, but each site has a list of what vaccines it can and cannot administer.
If you or your child is not able to receive the vaccine or booster at a particular site, then a nearby site should also be available.
Opening times are also listed and the walk-in finder has a simple process of typing your address in to find the nearest one.
Walk-in sites do not require people to be registered with a GP.
To book an appointment for a vaccine, you should be registered with a GP.
Am I eligible for a booster jab?

The booster vaccine is now available to all adults in the UK, including frontline health and social care workers and those living in residential homes for the elderly.
For people aged 16 to 49 who are not frontline health staff, you must have a health condition that puts you at high risk from COVID-19. If you have a condition like this, you will be sent a letter from your GP or consultant reminding you to have the dose.
Dr Nikki Kanani, GP and deputy lead for the NHS covid-19 vaccination programme said: "NHS staff are making it as easy as possible for people to get their top-up vaccination, and from today people can now go online, find their nearest site and go and get their booster without delay.
"The booster is not just a nice to have – it is really important protection ahead of what we know will be a challenging winter. So if you are eligible, please do check the site finder and go get your jab."