Fiberoptic, I suggest a little project to introduce entropy. In the case of some newfangled tracking technology we are as yet unaware of, it may come in very useful. Basically you want a way to avoid developing patterns or a habit that catches you out later. The primary advantage is that a nosy postman might intercept a suspect package 1 week, but if you only revisit that blue box several months later, it's unlikely to turn into a problem for you.There's a list of the post boxes that exist in each zipcode on the USPS website or some 3rd party websites. Scrape that location data down and turn them into records with 1x blue box per line. Then go to a random line sorter (there are programs online for this) that will shuffle the records around so that they are out of any ordering. Say there are ~200 boxes around you and so ~200 records. Find another random number generator service online that allows you to constrict the returned values to a range of between 1 and ~200. If it's 132, it's the 132th randomly sorted record. That is the address for today's box drop(s).In addition, I am pretty sure that there's a considerable number of boxes and other mail pickup delivery points that don't have security cams and aren't on USPS's official list, and as such are perfectly off the radar. Some apartment blocks and businesses have internal collection points for outgoing mail, just as some do with laundry and trash, but it is situation dependent and usually not publicly accessible unless you have access. Could be worth it though since security cameras are usually on the outside, not the inside.Finally, if you have a considerable quantity of packages going out, I suggest you use the next zip code over. In the summer wear dark glasses and a cap, in the winter wear a fluffy hat and gloves. You should always wear protection for your hands, whether it's liquid Band-Aid in summer or gloves in winter, because if they get identical fingerprints, even on the outside of two different packages over a period of time, then the local police department may feel the urge to investigate, especially in a small town. Some dexterous vendors put smaller packages into 1 larger envelope package, then put the large one into the blue box and shake the smaller packages out. No gloves and it works just as well (don't lose the envelope!). Another advantage to this approach is that a nosy person looking at your back seat doesn't see dozens of small packages. Curtain twitching grannies have been known to conduct rudimentary traffic analysis and report suspicious activity! :DThe random thing is easy to program, I might do something later this week if I get the time, in fact there's a whole suite of useful programs that SR vendors and buyers could avail of, we should have an entire thread on the subject sometime.