While the iPhone 4G claims to have vastly improved battery life, some are still not impressed. If you are not convinced of your battery's longevity and wish to replace it, check out this clip. Apple won't do this for you and a repair shop will be pricey, but if you follow these instructions you can do it yourself. So, get ready to operate on your smartphone with this helpful tutorial.
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.