LifeHacker is from Gina Trapani and is linked with the LifeHacker Blog. The book gives a ready check-list of ideas for boosting productivity and making Life easier and is well worth skimming through to pick out any ideas you haven't yet implemented.
For example, I don't know how organised you are on passwords, but the two main strategies people seem to have are either: one password for everything (clearly not ideal from a security perspective) or a different password for every site (tricky to remember, especially for those you use less frequently). A great idea from the LifeHacker book is the idea of a 'core' password e.g. elephant which them changes for each application e.g. your amazon password becomes amelephant, your Citibank password becomes Cielephant etc. Many passwords need to be alphanumeric of course so I use that as an opportunity to remind myself to change my passwords by sticking in a date reference; thus at this time of year amelephant07 becomes amelephant08. Or whatever!
Both book and blog are well worth a study.