This is my first tab, and I just did this from ear, but I think it's pretty close. Enjoy!

A (x02220@1)                           C (x32010@1)      
Is there such a thing as too much of a good thing?
G (320003@1)                    AI (x02220@1)ask myself that everyday
AThat (x02220@1)is until the weekend comes
         CAnd (x32010@1)the sun has gone away to sleep
G (320003@1)                               AThen (x02220@1)there's only one thing on my mind (A good time)

A (x02220@1)                               CThat's (x32010@1)right, me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (saturday)
A (x02220@1)                       CYeah (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (saturday)

A (x02220@1)               CWith (x32010@1)the dancin', and the singin'
G (320003@1)                     ALike (x02220@1)the weekdays never happened
A (x02220@1)           CI (x32010@1)could be, I should be
GDancin' (320003@1)right now
A (x02220@1)                         C'Cause (x32010@1)me and my baby love Saturday nights
G (320003@1)              G (320003@1)   
Saturday nights (saturday)
A (x02220@1)                       CYeah (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (saturday)

A (x02220@1)                     CThe (x32010@1)talk of the town is where we're headin' next
G (320003@1)                            A'Cause (x02220@1)everywhere we go is the best (the very very best)
AIt (x02220@1)doesn't matter the company
CBut (x32010@1)we're pretty good company
G (320003@1)                AFor (x02220@1)you to have a round (a round a round a round)

A (x02220@1)                     CAnd (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (Saturday)
A (x02220@1)                     CAnd (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (Saturday)
A (x02220@1)               CWith (x32010@1)the dancin', and the singin'
G (320003@1)                     ALike (x02220@1)the weekdays never happened
A (x02220@1)             CAnd (x32010@1)I could be, I should be 
GDancin' (320003@1)right now

A (x02220@1)                        C'Cause (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (Saturday)
A (x02220@1)                       CYeah, (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (Saturday)

A C G A
Here we go!

My baby and I my baby and I

We're goin' dancin' tonight

AThe (x02220@1)dull drum of the work week 
CGets (x32010@1)me feelin' down
G (320003@1)                         AMisery (x02220@1)and sorrow follow us around
ABut (x02220@1)when that music hits in
CAnd (x32010@1)the band starts to play
GThat (320003@1)means you better
G (320003@1) A (x02220@1) A (x02220@1)A (x02220@1) Amaj7 (x02120@1) 
Get out of our way!

A (x02220@1)                        C'Cause (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (Saturday)
A (x02220@1)                       CYeah, (x32010@1)me and my baby love Saturday nights
G (320003@1)              GSaturday (320003@1)nights (Saturday)

[Acapella]                   
Me and my baby love Saturday nights

Saturday nights (Saturday)

Me. And. My. Baby. Love. Love. Saturday.