How many of these friendship goals do you and your best friend tick off?
Blood may be thicker than water, but a really great friend can become as important as family.
And best friends - as we all know - are top of the friendship tree.
But what makes someone not only a good friend, but a BEST friend?
Well, thanks to Hallmark - who polled 2,000 adults on all things best friend related to celebrate the 30th anniversary of Forever Friends - we now know.
As well as the top 30 signs someone is a true best friend, the poll - which was conducted by OnePoll.com - also discovered that the majority of Brits meet their bestie at school. Interestingly, the second most common place to meet your BFF is work, with uni coming in third place.
WATCH: Brits open up about their best friends in this touching video
30 signs someone is a true BEST FRIEND
They never judge you
Always keeps your secrets
They're always completely honest
You don't need to talk to each other every day to know you are there for each other
Silences are never awkward
You go for long periods of time without talking or seeing each other but can pick things up as though you've never been apart
Never gossips about you behind your back
You can go on holiday with each other without falling out
You can talk about intimate things openly
They're on the end of a phone around the clock
Knowing how to make each other laugh when you feel down
They make sure you get home OK when you've had too much to drink
You're happy to share a room together without falling out
They say yes to helping you before even knowing what you want their help for
You just know how each other is feeling with one look at their face
You have private jokes only the two of you find funny
Always sends a birthday/Christmas card
Never goes after your ex-boyfriends/girlfriends
You can always move on from an argument as soon as it's finished
You're comfortable getting changed in front of each other
Always remembering the little things, like an appointment at the doctors or something you are nervous about
You would happily lend money to each other and not expect to see it back
Turning up with a bottle of wine / bunch of flowers to cheer you up
Knows your favourite drink
Will pick the children up from school and never ask for anything in return
They tell you when you have food in your teeth
They are on first name terms with your parents
Never judges your parenting styles, but listens to / joins in on your tales of how it really is
They cover for you when you need an alibi
They would never put an unflattering picture of you on Facebook without your approval