Frugal Woodworking

One way to avoid spending money on new planer or jointer blades is to keep using the ones you already have.  Unless they are severely damaged, they can be sharpened without too much effort.

Here is an example of a jig to make sharpening consistent and easy.  It requires only a block of wood and a table saw to make it.

americanwoodworker.com/blogs/tips/archive/2008/07/07/Simple-Sharpening-Jig.aspx