Here's one that is kind of along the same lines of having some fun if you find yourself with a little extra free time.... Who gets the spam snail mail on a daily basis?? You know, all the crap from credit card companys and financial lenders that come in the mail with "no postage necessary" return envelopes??
I save those up and now and then stuff the envelopes with some of the crap from the other envelopes and add some other usless stuff if it's laying around.. tampon coupons.. Ed McMann stuff.. you know whatever.. and drop them in the mailbox.. It's good for a 1.5 minute chuckle now and then..
