A quick space saver in your kitchen is to use metal hanging racks for pots and pans. This saves you a lot of counter space.
You can also use magnetic spice racks and magnetic knife strips to keep things out of drawers.
If your drawers and cabinets are packed, you may want to also clean house a bit. Donate or give away all the bake-ware, Tupperware, utensils ext. you have accumulated over the years, and never use.
Creating a New Look
A great way to change the aesthetics of your kitchen is to paint the walls, ceiling, and also re-paint or sand down and stain your existing kitchen cabinets. You can also tile the walls behind the counter tops.
Practice first, but remember that this is a relatively easy and cheap way to change the look of your kitchen drastically.
Creating More Counter Space
If you have limited counter space you can invest in a kitchen cart or table. When entertaining they are very convenient to move around. You can get them with cabinets underneath. This will also save on storage space. You can also buy a very large cutting board and use it over the burners on your stove.