Changing station every floor, at the right height for you. Doesn't have to be an actual changing table.
Once they're walking, really encouraging walking and extending their range bit by bit. They seem to understand quite easily that one parent can't pick them up, carry, push (and twist the other parent around their little finger).
If you have a local college that does childcare courses phone and ask if they do 'placements'. Sometimes they are looking for homes to go to, and prefer situations where they have supervision but a lot of childcare (i.e. twins, disabled mother). Free too!
I managed sling/rucksack with crutches for months. Didn't help with pain, and I got some funny looks, but we managed to get out to some baby groups and people/teachers were generally really helpful with holding baby, swinging the rucksack up, helping down the stairs when no lift etc.
As much help as possible. DH did all the night duties along with MIL and DM (taking week long shifts) for first few months. Paid help too, which luckily we could afford.
Take every shortcut, cheat possible (e.g. if formula feeding and can afford to, buy the ready made-up packs).
Mobility scooter whilst pregnant, as many warm pools,hydrotherapy sessions as possible to help manage pain (which may well get worse). Wheelchair and baby in sling for shopping. Waitrose are very helpful but I'm sure other supermarkets all help. As much on-line shopping as possible.
Health visitor and midwife likely to be very supportive and do far more in-home visits than usual, to avoid you trekking to clinic. Also likely to keep you on the books for longer, see it as help.
If you/partner work you may be eligible for some form of salary sacrifice childcare vouchers, which make nannies, nursery a lot cheaper. You can apply from before the baby is born, I think.
Had quite a lot of help, especially at first, but managed quite well on own with odd hours of help (and a very hand-on DH) for much of mat leave. Pain was worse, I did take more meds, which meant I couldn't safely be left on own overnight with DC (in case of emergency), or drive.
If it happens (and fingers crossed) and you come up with a question later, you can always DM me and I may recall suggestions for specific issues.