Do you have a local Volunteer Bureau? People are always wanted to work in charity shops, befriend housebound people, administration, conservation work, etc, etc. Something like this could get you out of the house, you may be able to take your child with you to some places, and you would make valuable contacts for future employment.
It could also ease you back into a work environment. Evening shifts could mean you have less time to spend with your partner, which is a shame if he's at work all day too!
Good luck.