Other useful items include a blanket and towel, a cold pack or a plastic bag to use as an ice pack, and rubber gloves. (animals.howstuffworks.com)
The page includes a couple of other useful items for D - I - Y Kindle publishing, including the Kindle Previewer. (activitypress.com)
These sets usually include a carrier as well as other useful items, like a hood, blanket, drool pad, zipper pocket, and sometimes even extra attachments that can allow you to convert your carrier to something else. (abckidsinc.com)