I am recently back from maternity leave and our administrator knows the nursery fees are killing us financially. she proposed today that I could stay home one day/week to save fees. I explained I couldn't because I wouldn't be able to get any work done looking after two babies. she said that wouldn't matter because it's not like I stick to contracted hours (ie most people in my job work 50+ hours/week even though contract says 37) and it would even out over time, as I have worked 50+ hours in the past and will do again as the babies grow up. she has since emailed to say my boss is 100% supportive of the proposal.
it sounds very tempting, we could really do with the extra money. but I am concerned that it will make me beholden. eg, I am planning not to do any travelling for a while (dp can't settle both babies at night) and days I am there I often can't stay late for meetings as I have to get to nursery before it closes. I am concerned that taking up the 4 for 5 offer will require me to be more flexible in other ways, and I'm not sure I can be. also, I'm not sure I will be able to do enough work in the 4 days to keep on top of everything, which will be a problem when I need to apply for another grant in 2-3 years. I would also feel guilty if I tried to move jobs in a few years, something I am half-seriously considering.
once you give up a day's nursery space for two babies it is hard to get it back, so this is not an easily reversible decision.
wwyd? are there other considerations I haven't though of?