Now that I have an iPhone, I am finding that the application icons are a complete jumble. I like things neat. Is there a way in iOS 5 to move them around so I have my favorites on the first screen, and so on?

I don't know if I'm just getting old or what, but the text in my version of Microsoft Windows is tiny and I want to make it bigger. You know, the labels underneath icons, the text in dialog boxes, etc. I know there's a way to do that: how do I make the text in my Windows theme larger or bigger?

I spend a lot of time using my laptop, an Apple MacBook Pro, and for years I have had various stickers on the cover, a montage of brands and vendors. After a while, though, that become a bit tiring and when I saw more and more other people with the same sort of random pastiche of stickers, well, it was time to do something else.

Enter GelaSkins. After checking out their cool, super colorful "skins" for various devices at trade shows, I decided it'd be fun to get one for my MacBook and try a single full size sticker instead of a lot of little stickers. Their PR team was quite forthcoming in sending a discount code so I took the leap.

The biggest challenge? Figuring out which of the hundreds of different designs I wanted to have emblazoned on my laptop.

Every time I send an email message from my Apple iPhone 4, it ends with "Sent from my iPhone" which is about as boring as I can possibly imagine. I've seen other people don't have this and I presume they aren't changing it for each and every message they send, so what's the scoop, how can I change my default email signature on my iPhone?

I do a lot of business via Skype and often have a chat window open with my partner while we're on the line with a client. We have a backchannel conversation going on so we can ensure we're in agreement on terms, schedules, etc, but what drives me crazy is that each time I get a chat message there's a small "bloop" sound. Can I turn this Skype audio notification off?

A pal of mine showed me how she'd set up her MacBook to allow her to just gently tap on the trackpad to send a "click" to the operating system, as if she'd clicked on the mouse button. Very cool. How do I set up my MacBook Pro to let me do the same thing?