If your website relies on images, Flash or JavaScript, and fails to provide alternatives, then your website won't be accessible to a number of web users. The following examples are a common occurrence:

* Users on slow connections regularly turn images off to enable a quicker download time. Some browsers, such as text-only Lynx browser do not display images at all.

* Not every user has downloaded latest Flash program that's needed to access your site. Additionally, download time on Flash websites often takes so long that users lose patience and don't even wait to see content. Just 25% of web users in UK are connected to Internet via broadband (source: National Statistics).

* JavaScript is a scripting language that can cause changes to a page, often through mouse functions, buttons, or other actions from user. For example, pop-ups are opened using JavaScript. JavaScript is unsupported by about 5% of web users, either because they have turned it off to prevent pop-up adverts or because their browser doesn't support it (source: The Counter). Any JavaScript-driven content provided on your website won't be accessible to these users.

* PDAs, mobile phones and WebTV have limited support for large images, Flash and JavaScript. You can test your website by downloading free WebTV viewer. You can also check how your website looks on a mobile phone with Wapalizer. Don't underestimate importance of this: in 2008 alone an estimated 58 million PDAs will be sold (source: eTForecast) and one third of world's population will own a wireless device (source: ClickZ)

3. Never use personal details in your password. People often use their home address, their age, husband or wives name, their social security number or their date of birth. These are incredibly easy to get access to by either a fellow employee or potential system hacker. Your password needs to be secure and hard to guess and personal details meet neither of these criteria.

4. Do not write your password down anywhere. Keeping a record of your password for somebody to find is as dangerous as keeping a copy of your ATM pin number in your wallet beside your ATM card. Create a memorable password that you'll have no problem recalling. This is not as hard as it sounds and if you jot some password ideas down you'll quickly come up with some good ones. Obviously burn piece of paper you jotted your ideas down on.

5. Do not use same password for more than 90 days. Create several variants of same password and recycle them every 60 - 90 days. This adds an extra layer of security to your data. By recycling your password frequently you make your data 1000% more secure. You'll notice that most large corporates force their employees to change their password every month for this exact reason.

Hopefully these tips will help you choose a password that's both safe and secure and that you'll have some fun creating your new passwords too!