I don't know if you guys already know about it, I've found out by myselft this morning. Let's say you are in the Scrapebox proxy manager and you loaded/harvested a huge amount of proxies. Usually I first remove the duplicates, and it takes quite a long time, depending on the number of proxies I have. Well, the (small) tip is that if you first order the proxy list by IP and then remove the dupes, it will take just a couple of seconds. That's all. Happy spamming!