I can’t recommend part time work enough. I get to spend time with DS, while do a job I love and that pays me quite well. I alternate between 3 days a week or 4 days a week at work, ie I have one or two days off a week. I have a 20 month old.
It depends on how you define difficult to entertain. Both him and I like being out of the house, so we are usually at a toddler group in the morning, then go out to the park/a cafe/a friends house or my inlaws in the afternoon. The time goes quickly, he rarely tantrums when he’s busy and he’s tired by bedtime. This probably sounds exhausting though if you like being inside all day! All toddlers are different though, some are happy to potter round the house all day.
It’s not at all expensive, he costs far less now then he did as a small baby.
He loves the 3 days he has at nursery. Is always chuffed when he arrives and sad to leave. Again, this would be different if he hated the place. Nursery however is expensive.
I get minimal housework done with him around. He likes to ‘help’ with a few chores (washing machine, sweeping, putting his clothes away) but most big jobs get left to the evening or weekends. He doesn’t like being on his own for more than a few minutes, but again, some toddlers are happy on their own for extended periods.