I went back to work 30 hours a week when Gabrielle was just on 5 months old. Mostly I find the routine is the same as it would be if I was at home, just very condensed and alot earlier! I try and get our breakfasts ready the night before, plus Gabrielle's daycare bag and bottles. Our morning routine is:
5.50am - I wake up, have a shower and get the breakfast from where I have hidden it from the cats

I get the bags organised etc
6.15am - wake Gabrielle, dress and change her
6.30am - breakfast for us both, followed immediately by her bottle, teeth cleaning, dishwasher loading etc, open garage, pack bags in the car etc (can't hold two bags plus a very heavy Gabrielle!)
7.20am - leave for daycare and work
Evenings is a bit of a rush somedays coz she is generally tired on daycare days. Generally:
5pm - walk in the door, go straight to getting washing off the line and folded, unpack bags and repack (esp fresh spare clothes for daycare), put washing on, getting Gabrielle's dinner organised, start the adult's dinner (I'm a single mum but live with my parents who work funny hours)
5.30pm - feed Gabrielle
5.50pm ish - bath, jammies, playtime
6.20pm - bottle, teeth, story
6.45pm - bed
7pm - hopefully mum or dad will have arrived home and started cooking but if not I cook my dinner and sit down to eat. I try and hang washing on my clothes airer inside at night (unless Mum or Dad is home in the morning to hang it outside), and pack the bags and make lunches etc for the next day.
Good luck! I think the key is to try and do everything possible to make it easier for yourself. I work best when I organise things the night before coz sometimes that means I get 10 minutes of playtime in the morning with Gabrielle before we have to leave. I'd rather get up early and spend the time with her than have that extra few minutes of sleep. She also gets a hot meal at daycare for lunch every day so I don't have to feel too guilty if I only give her finger food for dinner some days.