Early Planting of Strawberries and Potatoes

I have received my potatoes and strawberry plants this evening in the mail.  I had ordered them this year and I would be getting them sometime in the beginning of the growing season.  Today they arrived and I need to plant them in the garden as soon as possible.

This means I have to start working the soil a little bit sooner than I had anticipated.  I was hoping these would come in a little bit later and possibly the end of March.  It looks like these plants will have to be in the garden sometime this week.  It is supposed to be a good day on Thursday so it looks like I will be aiming for that day to put them in the ground.