Wow. That's going to be a nice present and it's nice you're putting some thought into it!

Do your parents do stuff together? Do they have activities they like to do together, like movies or eating out or going to certain stores? Do they like cooking or working in the yard together? Sports activities? When our son gives us together presents, he generally goes in the direction of some activity or interest we have together.

I gravitate more and more to gift certificates that people can use to get things for themselves. For my parents, who I think are hard to buy for, I'm getting four gift certificates. One to a restaurant they go to all the time. One to an art house movie theater they like. One to Bed Bath & Beyond, where they like to go get kitchen gadgets and things like sheets and towels. And one to Barnes & Noble, their favorite bookstore.