Hi - same boat here, starting back at work in the city tomorrow.
Contrary to popular choice of doing 3 days in a row, I definitely do not prefer this. I will be doing mon, wed and thurs then prob will change to tues, wed and fri down the track a bit. For me, as a single Mum it's too much doing 3 consecutive days. Having a day in between breaks it up and I only ever have to commute 2 days in a row so if I'm really tired one week it's bearable. still geet a long weekend but I love my 2 week days off as it's less busy everywhere and we can join the other Mums and bubs in activities/at the park. DS will stay with daddy 2 nights a week and he can drop him at kindy the next morning so I can get off to work hastle free and come home early to pick him up.
Same, I'm lucky I'm in a job where there's demand so I got to pick and choose my hours/days and a good hrly rate. I commute on the train but it's comforatble enough and I'll just watch shows on my netbook.
If you have hubby at home then I guess you can choose whatevcer suits but I like splitting my days up a bit. I don't really care about long weekends being a single parent anyway and there's really not that many public holidays. I'm looking forward to changing to tue,wed and fridays as I can go for friday drinkies in the city with friends and DS can stay at daddy's As you can see I've thought a lot about this!
Also, I think splitting the days up a bit works better for bubs/toddler, well in my case anyway. A four day weekend is a bit long and boring for us. A bit of variety is better.