It also creates an extra garden chore for me. Weekly, her leaves pile up at least two feet deep near our side gate.
I would never bag and throw away leaves, especially these. They are thin and papery so they break apart easily but aren't too crumbly. Normally, I'd add the leaves to the compost, but by this time of year, both compost bins are full and we try not to add anything for a month before we empty them.
So... instead, I shred the leaves with the leaf vacuum and spread them in the flower beds as mulch. If you don't have a leaf vac, you could do something similar with a lawn mower and a rake.
It's smart to mulch during the winter. If you don't cover tender plants during a freeze, they'll die back, but if you mulch the base, the roots won't freeze too far down and the plants will come out quickly in the spring. In beds where I expect to be digging seasonally, I prefer leaf mulch to bark mulch. The leaves don't mat together like bark so it's easy pull them back to reach the soil. Plus leaf mulch is free and it gives me a little incentive to pick up after my neighbor.
When life gives you leaves... make mulch.