When some errant drops of windshield washer fluid from the car in front of you land on your own windshield, thus allowing an ineffective yet "free" cleaning.
The fortunatediscovery of Marijuana while looking for something unrelated. The resulting find will likely be very old and dry, but is nonetheless gladly received.
Last night I was looking for change in the sofa cushions and found some serendipity weed. Shit was real dry but still did the trick.