My patterns are available for sale in three places.  There are some differences, so please pick the place to order that works best for you. 

michellepatterns.com

In case it's not obvious, michellepatterns.com is where you are now. 

These are instant download patterns and you do NOT need to register to order. 

This also means any patterns you order are NOT stored here and are irreplaceable if you lose them, or don't download them within the 30-day download period.  In other words, if you lose your pattern or don't download it before your link expires, you'll need to order it again. 

Now the good news is the price you see is the price you pay (all applicable taxes are included).   

craftsy.com

You can find most of my patterns here on craftsy

To order on craftsy, you'll need to register and the pattern documents will be stored in your account on craftsy. 

As far as I know, craftsy collects sales taxes in the applicable US states (which is most of them). 

etsy.com

You can find my patterns here on etsy

To order on etsy, you'll need to register and the pattern documents will be stored in your account. While you can check out as a guest, I don't recommend it because your patterns won't be stored in your purchase history (you won't have one).  That means if you lose the pattern, you will have to reorder. 

Etsy list prices do not reflect the additional VAT or state sales taxes that may be applicable.