Selling Improvements- How do I know what is worth it?

There is no real rule of thumb on what to fix/replace or do to get the most money out of selling your home. This is largely due to a few varying factors. Some markets are great for fix and flip homes, some are not. It depends on the following things.
Time of Year; Where the home is located; What the local market is like; What the recent sold homes reflect; Your current competition. Always consult a local Realtor who can give you an idea of what will be most beneficial to YOU, the seller in your specific market setting before creating your remodel. No one wants to spend $10,000 fixing up their home to get $5,000 more when selling. You want to be able to maximize your profits and get the most out of what you spend.
Here are a few suggestions once you know what works for you:
The top remodel repairs include.
Updated flooring (tile, wood or wood laminate) Vinyl flooring when your only choice should be free of tears or rips.
Kitchen updating- resurfacing cabinets is better than replacing also adding hardware can sometimes help; granite is popular but not always necessary; newer faucets and sparkling sinks go a long way- updated appliances also tend to help a sale.
Bathrooms- think clean, updated flooring, fixtures and lighting when possible. You can get new shiny and inexpensive updates at your local hardware store.
Fresh paint to walls, ceilings and baseboards- a white ceiling and baseboards with a neutral light tan paint is most effective, remove popcorn ceilings when possible and wallpaper- it isn't that everyone hates wallpaper and colored paint- these are just personal choices and what you like may not be someone else's choice, so the more neutral the better.
Caulk windows, doors and around tubs, showers and sinks for a fresh look that is rather inexpensive.
 Curb appeal is a great way to show off your home for sale and make the buyer WANT to step inside. Trimmed bushes, trees and shrubs are important along with manicured lawns. Granite/Rock that is even and level. Planting seasonal flowers can also brighten up the exterior of the home inviting people in.
Whether you are getting ready to sell your home with a Realtor, or wanting to try selling it on your own, you can always contact a local Realtor to come and check out what they suggest would be the best "bang for your buck." Remember, they are the expert in their field and will give you the suggestions that will best help you sell your home for the most cost effective way for you.