If you don’t have a car with built-in satellite navigation, the most cost-effective way to add it is by opting for a handheld device with a GPS receiver.

Internet everywhere, for affordable prices. Dave Stevenson investigates the claims, tests the speeds and delivers a verdict on the best plan for your mobile dollars.

The first place to start tweaking is your BIOS. Enter your BIOS by hitting a key combination on system boot (look out for F1, Del etc). A word of warning though, the BIOS is a very powerful tool, but can cause damage if pushed the wrong way.

Benchmarking PCs is a tricky business. You need to ensure that you stress the systems, but also that the results you get will be relevant in the real world. Previously we have relied heavily on BAPCo's SYSmark2002 for simulating home and office use, with programs such as Excel, Word, Outlook, and web content through Adobe Premiere and Macromedia Dreamweaver. However, due to SYSmark's history of instability as well as the sheer length of time it takes to complete a run, we have put it on the backburner in favour of PCMark04 for this Labs.