I was going to echo what NoWay says about being easier to settle younger they are..
I left DD with a childminder at a similar age to your's, she's now 2.4yr's old and has an amazing relationship with her and all the other kids, it's fantastic and I have to say it makes life easy that she's so happy.
For those not going back for a few months - do try not to let the last few months / weeks or even days be tinged with guilt and angst of having to go back. Honestly, honestly you will soon settle into a little routine and it will be fine.
The only tip I really have is if possible, I would get your someone else to do the drop off I'm not sure if it's a cop out, however, I know I found it easier that DH did it
Try too to make sure you are as relaxed and chilled out about it as you can be as I'm sure it doesn't help according to my CM if the little ones see Mummy all sad and lost.
Finally, it goes without saying that you will feel like a duck out of water and totally lost for a few weeks, however, work at it and just go slowly and accept that there may have been changes since you've been off and things might be different and you will feel left out or zoned out or just totally in a different world, but slowly but surely am sure you'll find your feet and so will the babes.