Would you / do you promote your beliefs on your clothing, car, front lawn?Clothing: Issues, sometimes. I have a few AIDS awareness t-shirts (and U2's "Pride" EP cover with MLK, Jr. - if that counts), a "How
dare you presume I'm heterosexual" pin, a few Disney "Environmentality" pins (which they release every Earth Day), and that sort of thing.
I haven't really worn political election-type pins since 1980. The Youth International Party (Yippies) put out a pin for the national election that year which said
"SHOOT BUSH FIRST" (uh, yeah - I've taken a dim view of the Bush dynasty from the outset). Now
that pin stimulated conversation.

I wore the thing daily, before and after the election - until
Reagan got shot.

I kinda lost my faith in badges after that.
Car: Not at the moment. My last car had two bumper stickers: "Don't Blame Me - I Voted with the Majority" and "You Don't Have To Like Bush To Love America". My current car only has an America's Debate bumper sticker - and even
that got keyed. I guess someone out there doesn't like free speech. Fancy that.
Lawn: Nope. I find things in peoples' lawns generally unsightly - especially if they're something that I have to
read. I'd put a plastic flamingo in my lawn before a campaign sign.
I suppose if I were supporting a candidate who had a chance of winning an election on the basis of my sporting a pin or a bumper sticker, I'd probably do so. I don't imagine that a candidate that I actually
supported having a chance of winning anything is likely to happen in my lifetime.
Do your companies, schools, whatever have any guidelines about political materials appearing in your office or on your person?We have strict guidelines in relation to dress. No pins or badges of any kind - even tradition jewelry is discouraged (and restricted). In our cubicles, we can pretty much do what we want - so long as the language is inoffensive by Disney standards.
I have a few photocopied quotes from George W Bush like "Who cares what you think?" and his letter to the Salvation Army in which he makes the "firm commitment" to protect government-funded religious charities from hiring discrimination laws and other stuff like that (including another America's Debate bumper sticker). No campaign materials, though. Again, I'd have to actually
support a candidate for that kinda thing to appear.