Get yourself straightened up.

I know that there are other programs that will do the same thing, but those of you who are using Picasa to manipulate pictures before posting them as blogs may not have found the extremely useful tool for straightening them up.

If you click on to a thumbnail of your picture, it opens up as a full sized image, with a list of various tools on the left hand side. Click on to straighten, and the picture is overlaid with squares. A slider allows you to line up any vertical with these. Click on 'apply' and your pictures no longer look as though they have all been taken in Pisa.

To folk like me with a built-in list it's a godsend!