planning a cheap and fun wedding on a farm and resolutely not getting stressed out
No you need to savour every single achievement. Woo you bought card for your invitations. Remember you can even have weekends where you don't do wedding stuff and just enjoy each other. They are wonderful ;)
Thats an awful lot more wedding stuff than I do in an average weekend. I try to persuade myself that hours and hours spent "researching" on the internet is productive wedding planning time. So, you did very well!
I agree whoop to buying the card; its still one more thing done!