You don't have to spend a alot of money to have great landscaping. If you plan, you can make the most our of a few dollars. Splitting the project into phases gives you, time, to do a little bit at a time.
Gravel, or pavers make a inexpensive path or walkway.
If you have a deck furnish with inexpensive seating and tables. You can dress up your patio with a outdoor rug, plants and other garden style decor. Tiki torches are inexpensive and can also be used for lights.
Make a water feature your self. Improvement stores have everything you need.
A nice trellis or arbor is great for making privacy.