slideshow?

I know this is probably totally obvious but I have not figured it out yet. How do I put a slideshow on my blog?

Due to the fact that we have no space to upload pictures on our computer I've been uploading them to my in-laws' computer and thus I only have access to them some of the time. That's why I don't ever post anymore - because what is a blog without pictures? Hopefully I'll get more with it soon.

We're enjoying ourselves here in Utah and have been doing lots of fun stuff: swimming, BBQs, Bear Lake, the park, etc. Good times!