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Depending on how many people you plan to invite, this may become physically exhausting. Handwritten invitations are immediately more personal than any typed font could be - it's your own personal font! Agree on a format, split a stack of invitations with your partner and start writing. They will not all look the same, but that's the point! Each invitation will be one of a kind. If writing the full invitations by hand is too time consuming, you can always type up the actual invitation and only write the name and address by hand. Envelopes can take many forms, both manufactured and homemade. The invitation itself can be folded into a type of envelope, but it's recommended to place it inside of something else to avoid being damaged. But why use regular envelopes when you can make your very own personalized invitations! Create your own personalized envelope by vertically folding a standard sheet of paper into three equal sections. Unfold the paper then fold the two long edges in by an inch. Refold the bottom third onto the middle third and glue it in place on the edges. You now have a sealed pocket in which to place your invitation, then fold the remaining third down and seal it in place with tape or glue. If you are feeling more tech savvy and want to avoid the whole process of mailing invitations, create a website for your special day and share the link with those you want to invite. The website should contain details regarding time and locations of the ceremony and receptions. It should include further information for expected attire, parking, and a gift registry. You can include an option on the site to RSVP for themselves and whoever they are permitted to bring. Enabling guests to RSVP online is very useful as you have the further benefit of collating a database of guest's email addresses if you need to contact them with further details closer to the wedding. Many wedding websites have resources that can help you create your own site regardless of technical skill.
Write invitations by hand. Get creative with the envelope. Create your own website.