OK, sorry, call me a grump, but I just can't wave at any more cyclists.
I did the same 25-mile round-trip commute by bike 75 or so times a year between 1979 and 2007, when I retired. When I started, I might ride all week without seeing another cyclist; On the rare occasions I did, it would be one guy, usually with a beard. We'd wave like fools, talk to each other, carry on like reunited brothers.
When Greg Lemond started winning Tours, more riders showed up. He grew up here, got some early sponsorshop from the local shops, and he was popular. Eventually I saw maybe half a dozen riders a week, or three in a group on Saturday.
Things slacked off for awhile, but then Lance came along. Cycling surged, and surged again when the Baby Boomer joggers gave up running to save their knees. I nodded grimly and acknowledged everybody.
Last Sunday we had a pretty nice day, and I rode most of the old commute route. I saw FIFTY-SEVEN riders, an average of about 2.3 a mile.
I wish everybody well. Enjoy your ride. But I'm not waving anymore.