When good ideas go bad

It was another day at work, a Wednesday in fact. Being the conscientious employee that I am I was doing some research on the internet. Ok, thats complete bollocks. Being in a job where all you are hired to do is answer phones, and due to a number of 'technical difficulties' that resulted in our department having absolutely no customers and therefore, no calls, there isnt a lot to do. So I spend a lot of time browsing inane websites, sending emails to friends and playing games, which becomes very boring after 6 weeks when you've reached the point where you are sure you have read everything worth reading on the web. Anyway, with this in mind, I was quite excited to get an invitation to join some recently-made friends on a night out. I replied and said I would see them at the nomiated meeting place later that night.
While I was preparing to go out, I decided that I would go for one beer, and be back in time to get enough sleep for my next day at work (got to be alert for all that web-surfing). So I off I went. I met the girls and we had beer and conversation. And it was good. So we had another beer and talked some more. And it was still good. But I had to go home and sleep. The voices in my head had other ideas. Ok, not the voices, it was the (now slightly drunk) girls saying I didn't need to go home, stay for one more beer.
Me: 'Ok, another beer, but I'm going on the last train home. '
Girls: 'Nah we live out near you, get a taxi with us, and here, have a tequila'
Me: 'Mmm, tequila. Yeah, you're right, I dont need the train, taxi is good.' (Besides now there was drunken shenanigans and dancing, and its not polite to leave when you are having that much fun)
Anyway, it was obviously a brilliant idea. Who needs sleep when you can just keep drinking? Yay! More beer, that is the answer! Its all so clear to me now!
Anyway eventually I got home, at 1:30am. Which isnt the worst time to get home, except if you have to get up at 5:30am. And if when you get home your flatmates are still up and you talk to them first before going to bed.
5:30am - Hmm, alarm is going off. Ok, better turn it off. (Sit up) ok, ok, room is spinning a bit, just wait a minute, it will stop. Alarms off. Right, better get a shower. Actually, its difficult standing up when you're whole body wants to go to sleep. Not actually hungover though. Hmm, in fact, quite possibly still a bit drunk. Man, now I have to go to work.
Eventually I get ready and leave the house to catch the train. Train ride is a bit of a problem, it's an hour, and I fall asleep and nearly miss my stop. The walk from the station is also difficult. It is actually hard to stay awake. At my desk, I sit quietly and down about 2litres of water in about 30mins before I even feel vaguely functional.
And I think perhaps last night was not really the best idea. At least not on a week night.