First of all make sure to keep active and never let the days count reach zero, as that's when you do get charged. The community here is quite helpful and nice. Depending on why you're here, interested in buying or selling, etc.. could be helpful in your post to have more specific answers and advice/tips.

PS: I just bumped into this useful post you can check out redacted

Considering the effort and struggle and pain this community goes through day in and day out --- This has to be the funniest post I think I've ever read on Searchfunder