The clasp envelopes are used in our household and our business all the time. This size envelope is good for small as well as large receipts . For the business we use them for monthly receipts to keep things in an orderly fashion and at the end of the year it is easy to do both the business tax as well as our personal taxes and itemize by month. There are several different sizes of this type of envelope but this size is perfect for business invoices as well as receipts. Also keeping things in one place. Easy to open as well as close. I recommend this size to all especially business owners..
These are great and I have used them for many years to store our tax receipts and paperwork. I do genealogy and these envelopes are sturdy enough for the constant placing in and taking out of documents photographs certificates etc. These envelopes are also great for mailing. they hold up well as they travel through the postal system which as we all know can be difficult and destructive at times. I buy these constantly because of their quality and was excited when I realized they were on a buy 2 get 1 free promotion. These days any penny saved is important.