Your mom could be helpful in two main ways just after your reversal surgery: (1) shopping errands, and (2) laundry.
Just after reversal you won't feel like going out on long shopping trips. Your mom could do your shopping for you and pick up the essentials (more ultra-soft toilet paper, more Imodium, more Metamucil, adult diaper rash cream, or whatever). She could also do the food shopping for you, provided she buys only foods that are on the approved list for reversal patients.
Your mom could also do your laundry for you (wash, dry, fold) so that you always have clean sheets, clean towels, clean clothes, etc.
You now have about 3 weeks left to prepare for your reversal. You could spend some of this time reading the hospital leaflets on reversal and also reading some of the reversal / takedown journals that have been posted here on the Forum:http://coloncancersupport.colonclub.com/viewtopic.php?f=1&t=53157&p=420069#p420069
You could also spend some of this time doing preliminary shopping for the items that you are sure you will need just after reversal.