I would say no to laundry and working on the car. Big girl panties.... Would you take your neighbors car for an oil change? Nope! I bet they wouldn't even think to ask something like that.
Treat her like you would treat a neighbor.
Me: 35 husband:39 Sons 16 and 11 from my first marriage Twins 5 (boy/girl) Daughter 3 Affair bomb 2/27/14 He moved in with ow 3/13/14 OW kicked him out 6/15/14 4/2016 he seeks help for sexual addiction