Do you sometimes feel like your house has a case of the blahs?  That you are tired of the same old décor day in and day out?  Fear not.  There are simple and easy ways to change things up without splurging on a total overhaul.  Go on a treasure hunt around your house, clear some shelves and counters and start fresh, swap out mirrors, table lamps, throw blankets and pillows; rotate artwork into more prominent positions, rearrange books and try out new objects on the dining table.Here are some ideas to help along the way.

Treat yourself to a new shower curtain. One panel of fabric or plastic can completely change the look of your bathroom. A large-scale image can make a huge design impact, while a clear plastic curtain can make the room seem more open. 

Paint something a shockingly bold color.  Or a lovely pastel, or glossy black or Shabby Chic-style distressed white - it doesn't matter. It's only paint, after all; if you're sick of something, take a risk.You can paint one wall, the inside of your closet, a door or a piece of furniture.

Swap a mirror.  That large mirror over the powder room sink may crave a new home over your dresser or buffet, while your powder room may want two smaller mirrored medicine cabinets in its place.

Update your staircase. 
Replace your banged-up wooden balusters on your staircase with new wrought iron balusters in the design of your choice.  New balusters will make your house feel like it is a model home! Baluster options range from simple (twists, knuckles, baskets) to elaborate (scrolls, butterflies, and decorator finishes like Oil Rubbed Bronze and Stainless Steel.)  Your staircase design allows you to showcase your personality and creativity in what will become the new focal point of your home. 

Create a gallery wall. You may have some art pieces that have been out of rotation, are leaning against a wall on the floor or haven't been framed yet. Now's the time. Gather a stack of your favorites, clear out a big spot on the floor, spread them out and experiment until you find a composition that makes you happy.

Add unexpected pieces to a tablescape. Use different heights, textures and shapes on your table. Candlesticks, hurricanes, books, statues, small framed photos, bowls, shells, driftwood, beads and boxes are all good pieces to try. Many designers recommend arranging things in groups of three or five.  

Rearrange your display shelves.  This is a big project, so make sure you have a few hours to complete it before you get started. Otherwise, stacks of mementos and books on every other surface will get on your nerves and you'll lose momentum. Take everything down - this is a great chance to give your shelves a good dusting. Look in other rooms for objects like bowls, vases, artwork and other items that appeal to you, so you can mix them into your arrangement.

Clear your kitchen counters.  Clearing your kitchen counters and leaving only a few items will refresh your view of the whole kitchen.  Everyone who comes over will talk about how clean your kitchen is. Coffee grinders, espresso makers, spices, olive oil, cookbooks, toasters, tchotchkes ... while you're at it, take a look at how many hanging dish towels you have. Take everything out of the room and reassess.  Perhaps you'll create a more organizedcoffee station, with all the fixings in the cabinet overhead. Maybe you have been buying ground coffee lately and the grinder is just cluttering up the space. Perhaps you'll find a place near the range to tuck all of your spices. Maybe you have a lucky rooster who needs a more prominent spot.

Mix up your kitchen table or dining room chairs. Gather every chair that's comfortable for dining in your home and experiment. For a rectangular table, give host and hostess chairs a try. You may want to alternate two different styles or have a completely nonmatching group.

Create a new centerpiece.Forage outside for branches, buy 12 lemons at Kroger, get crazy with some moss, splurge on an orchid or, my personal favorite, spend $5 on a bunch of tulips at Trader Joe's and drop them in an tall vase, letting them fall where they may.

Change up your bedding.  This is a very simple thing to do that will have a huge impact.  You can brighten, darken, go modern or traditional, the possibilities are endless. Even something as easy as flipping your comforter and switching the pillows can go a long way.  

Toss a throw. This is the easiest one by far, so we saved it for last. Raid your bedroom, linen closet or trunk for a blanket you may never have considered for your living room. Instantly update your sofa by draping it over the back.