If your DC's primary school is implementing staggered drop off times when school returns do they have a policy for siblings?
Mine will be going into nursery and Yr1.
There will be 45 mins between each drop off and collection, in normal times there were 5 mins between each (in the same playground, so you would just wait) but I will have to queue up, drop/ collect One DC and then find somewhere else to wait with for 45 mins before going back to collect/ drop the other. They have categorically said that they cannot make other arrangements for siblings. They have also reduced the school day by half an hour.
Assume usual lazy/ unhelpful DH rules apply (he said he will try to help me on the days he WFH 🙄).
We live a 20 min walk from school (3yr old speed). I do drive but try not to for health/ environment etc.
I work a 15/20 min walk from the school. I used to work 9-3pm 3 days a week but I am going to have to do 9.45-2.30 and make up my hours in the evening/ other days when I have my youngest still - I am fortunate that I can work flexi time as this news was dropped on us this morning and they go back next Thursday.
I am going to have to drive, aren't I?
Wraparound care is for key workers only, I am a key worker but DH isn't so apparently we are on a wait list as those with two key worker parents take priority (fair enough).
Just when I thought that things might get a little easier for me.... 
Any other suggestions about how to work this? There are shops and a cafe nearby but I can't be buying coffee and cake twice a day 🍰