I would definitely have both children together, unless the elder is still jealous of the baby.
This is after all the period of their lives where it is essential that the two children really can begin to feel that they are siblings.
In my experience looking after two children is no more tiring than one at a time.
To start off with you will be tired whatever you do, but once you have established a routine for all three of you, that will wear off.
Or at least, if it doesn't you will have to regretfully inform their parents that you are too old to look after such small children.
When you really just fancy ‘something nice’….
Lack of Carer's courtesy while in your property
Unused rooms, heat storage and heat transfer
Govt announces Ukrainian style scheme to bring thousands more migrants to UK



