OK, full time job QUIT. I can earn enough part time from home. 
Wednesday - day trip to the winter gardens. DD1 learned about maps, read signs (including the new concept of capital letters), felt plants and talked about how they were adapted to where they grow, looked at a reconstruction of a mine and one of a kitchen, and talked about how the kitchen was different to hers, looked through magnifying glasses at things that had been found under the ground, made up a story about living with fishes in a bed of leaves and generally had a whale of a time :). DD2 did some crawling, standing up, practised fine motor control by eating peas, and learned to say "ffffffffff...sshhhh" (ie fish).
Thursday - Aquarium trip - lots of different fish and animals, talked about all the differences between them, had a frankly baffling game of octonauts, lots of public transport so timetables, fares, reading, chatting about what we saw, singing to keep the baby amused, ride on the ferry, long chat about all the different shops and what they sell.
Friday - nursery day (during which I phoned the potential school, as well as the HE lady at the local council...HE lady was the friendliest. Trying not to let this colour our decision. Have made appointments to look round the school and to speak to DD1s nursery key worker about how she is doing). When the kids came home we opened a letter they had been sent from my Nana and replied (DD1 dictated a letter to me, both kids drew pictures, DD1 signed her name) DD1 has been invited to a birthday party of a friend, so she is excited about that.
Today - I attempted to have a bath in the daytime, which of course meant that DD1 decided to come in and ask me questions about my body. Quite an interesting conversation about why some adults remove body hair, and how men tend to only remove it from their face, but some women remove it from under their arms and on their legs too, but they don't have to. Then off to a local library that was reopening after a refurb, to see the gruffalo making a celebrity appearance. Then DD2 did some walking/climbing/general rough play with me while DD1 played snakes and ladders with DH and helped him clean the kitchen.
Now the kids are at the ILs for a sleepover and I really should be doing my tax return!