Live by the idea of "home sweet home". Even though it's a rental, you are living there so take on the perspective that this is your home and place for you to enjoy, relax and unwind.
Save your boxes. Save yourself $40 or so and take apart your moving boxes when you are done unpacking and place them in a closet or under your bed.
Get rid of the "box" that you may keep lugging around with you. If you aren't going to unpack it, then you probably don't need it. Really consider what you are keeping in your home. If it's meaningful then find a place for it. If it's just stuff, consider letting it go.
Paint. For under $50, you can really design your space with great color ideas. Take the extra step and confirm with your landlord that you can paint and simply repaint when you are ready to move. If you are not allowed to paint, there are some great temporary wallpaper sources these days.
Invest in pieces that you know you will keep. Along the ideas of home sweet home, invest in pieces that you love and you know you will use. Forget the idea of waiting until you own a place. Long after you leave your rental, you'll have these with you.
Unpack all of your stuff. It takes some people a while and some people no time at all but unpack all of your things when you move and really settle into your home.
What are some of your renter tips for making your (rental) house a home?
Check out more renter ideas from Apartment Therapy: