Etsy also has a huge variety of retailers. I ordered bridal shower, brunch, and bachelorette invitations from several different Etsy stores for my sister's wedding and was equally happy with all of them. My sister and I both purchased our invitations from a local stationary store. They helped us word them properly and they were ordered from William Arthur. I think you should give more details on what you are looking for in your stationary so we can better direct you.
Etsy also has a huge variety of retailers. I ordered bridal shower, brunch, and bachelorette invitations from several different Etsy stores for my sister's wedding and was equally happy with all of them. My sister and I both purchased our invitations from a local stationary store. They helped us word them properly and they were ordered from William Arthur. I think you should give more details on what you are looking for in your stationary so we can better direct you.
Re: Invitations
If you're into DIY, local paper store or Michael's are good options