I couldn't give a toss, really, about Rosalie or about TWI.
If Rosalie's retirement is boring, however, I'll invite her to come alongside me for a week - to see how I serve in my community and how God allows me to meet peple's needs (and how they meet mine, by paying me!).
While she's here, she can also come alongside my church (in a low-income community) and see the many things that this church does to engage people, help meet their needs, make the building available to all sorts of people in all sorts of receptivity. A few strange and nervous people have just ventured as far as the couch in the lobby and sat there for months before venturing a "hello" without being talked to first. But now, they are contributing members of the congregation. The young people have football and table tennis tournaments. Every six months, we hire skips and people from the estate bring rubbish (rather than let it litter the estate) and better stuff is sold at the cost of pennies. The old and lonely have meetings there, too. There are two or three events/meetings in the church every day, as different ways of meeting the community's needs and showing Christian love to them.
She wouldn't be bored; there's always something going on. The kitchen is a good place to be. Lots of our activities involve food or at least drinks, available for donation - or nothing. Lots of plates and cups to wash (we have a dishwasher). Dishroom duty isn't considered a punishment posting; it's a blessing to be able to serve. Come on in!!
Then, maybe, she could go back and share some of what she'd learned about Service, Living the Word, Believing Action, and suchlike.