homemade envelopes

I have been making my own homemade cards for years, but have always bought little packs of colored envelopes  to place them in.  A month or two ago our neighbor taught me how to make my own envelopes, and it couldn't be more simple.  All you have to do is find an existing envelope the size that you want your envelopes to be, take it apart, trace it onto your desired paper, cut out, fold at the seams, and secure (with double sided tape or glue).  These are really easy and can be made from things ranging from sheet music, old maps, books pages, to colored scrapbooking papers, or even junk mail.  The possibilities are endless!