No trees, we had to cut the 2 big ones down before they fell on the house. No more shade for the hostas. Well, in fact, part of one DID fall on the house...a piece of branch went through the roof and knocked the plaster off the ceiling a mere inches from where my head would have been had i been on the elliptical. Scary...
Anna - if you cut them off, get yourself some Clorox wipes and clean your tools between every plant to avoid spreading any possible problem (some of which can be in the plants but not show symptoms).
I don't usually cut mine back but since I had some foliar nematodes this year, I have cut mine all back this year as a very good garden clean-up is one of the best things I could do to control the spread of the nems.
I sometimes cut back the really ratty looking ones when they go dormant. 'Sagae' is an example of a hosta that doesn't go gracefully at the end of the season. Instead of turning pretty golden colors like some do, it just droops and looks like it's dying. So...those I tend to cut back when I know they're done. Otherwise, I like the autumn colors. 'Strip Tease' looks particularly pretty right now.
Ann, I like your idea of the Clorox wipes. I sometimes get lazy about sanitation simply because I've never had any problems (fingers crossed.) I need to keep reminding myself to stay on top of things, because after my hostas are diseased it'll be too late.