Things have changed a lot in English football since I was playing for Liverpool and chasing several trophies in the way Manchester United are now.
But I know it is absolutely phenomenal for any footballer to be at the business end of the season and fighting on all fronts.
Cristiano Ronaldo celebrates after winning the Carling Cup
The games come thick and fast and a lot of the time you are just playing from memory.
You feel tired - and you are tired - but you fight it. There is a massive incentive there and the adrenaline, the buzz and the support from the fans keep you going because the big trophies are there to be won.
When we won the treble of the League title, European Cup and League Cup in 1984, I knew I might end up with three trophies, two or even nothing. Until you actually get your hands on them you are on a knife-edge but it is certainly exciting.
To end up winning them all you need leadership, big people in the dressing room and vast experience. We had a winning mentality at Anfield and United have got it now.
But the other thing that sets United out from their Premier League title rivals is that they have exceptional strength in depth.
When Arsenal, Liverpool and Chelsea have got everybody fit and their best XI out on the pitch there is not a lot between the four teams.
But what we have seen over the last six weeks is that United have got more strength in depth than the others put together and that is the biggest difference.
The big concern about Liverpool, even when they were top of the table in January, was that they relied too much on Steven Gerrard and Fernando Torres.
It turned out to be true - they have missed Torres' goals when he has been out and it is is impossible to keep asking just one player to win games for you. Gerrard has had a fantastic season but he cannot do everything on his own.
With United it is about their squad. When Sir Alex is up against a lesser side, and we will see this on Wednesday against Newcastle and on Saturday in the FA Cup against Fulham, he will rest players.
But the following week, when United play Inter Milan then Liverpool, you can bet your life he will have his strongest side out.
At Liverpool, we never talked about winning this or that, we knew things could change dramatically because football is a game that is waiting to kick you in the face
Alan Hansen
Sir Alex has done exceptionally well at just shuffling the pack but he has the squad to do it. To have the knowledge that he can make six changes and the team won't be affected is absolutely awesome.
Their success domestically and in Europe has had nothing to do with Sir Alex adapting his tactics depending on the opposition. It has everything to do with the people he can bring in - with United it is seamless.
Liverpool have struggled to score goals and have been drawing too many games at home but also the people coming in haven't been good enough. The bit-part players have not performed and revealed a lack of depth to the squad.
In contrast, United seem to be able to make as many changes as they want. For the Carling Cup final against Tottenham on Sunday, four of their best players were not even on the bench and they still won. They can essentially field two teams and keep winning.
And what is also helping them out at the moment is that their rivals are slipping up, which is a massive psychological boost.
When I was playing, all the games would be taking place at the same time at 3pm on Saturday and the first thing you would do when you came off the pitch was to ask how the rest had got on.
If our challengers had been beaten or drawn, it was a big lift and it works both ways too - with United winning every week at the moment the pressure is all on the teams below them.
So, can they win all five? Well, it looks like they have won the Premier League but the FA Cup is still up for grabs and the Champions League is a different kettle of fish - there are a lot of very good teams in that one but United are one of them of course.
Sir Alex knows he has a chance, though, and the one thing he will be looking to avoid at this stage is complacency.
At Liverpool, we never talked about winning this or that, we knew things could change dramatically because football is a game that is waiting to kick you in the face.
All you need is for one or two things to go wrong and your season can look very different. It is Sir Alex's job to make sure that does not happen.
Strength in depth is not just a factor for the title race - Villa are going through a bit of a sticky patch at the moment but it was always going to happen; they have had a fantastic run but they haven't got a huge squad.
Martin O'Neill's biggest problem is to pick the players up but their incentive is to get in the Champions League.
That would crown a remarkable season and it has to be their priority. Because of that, O'Neill didn't just make a great decision to field a weakened team in the Uefa Cup against CSKA Moscow, he made the only decision.
You could see on Sunday against Stoke that the sparkle had gone out of one or two of the Villa players. They play at Manchester City on Wednesday in what will be a huge game for them but they will have a rest at the weekend and, hopefully for Martin, they will come back from that revitalised.
Tottenham also put out a below-strength side against Shakhtar Donetsk but in all honesty they could probably have done without the Carling Cup final on Sunday.
They are still in trouble at the bottom of the table and they have to pick themselves up after being beaten on penalties after extra-time - and fatigue and cramp - for Wednesday's game against a rejuvenated Middlesbrough. It is going to be tough for them.
Alan Hansen was talking to BBC Sport's Chris Bevan
E-mail this to a friend 
Printable version 
Bookmark with:
What are these?