I try every year to get good decoration ideas and I always browse around. Here is a good site that has many great ideas. http://www.hgtv.com/topics/halloween/index.html
A good place to find do-it-yourself ideas for decorating an entryway for Halloween would be www.doityourself.com or at a local craft store.
You can find some awesome patterns for decorating a pumpkin at http://www.marthastewart.com/photogallery/pumpkins. You can also find more ideas at http://www.countryliving.com/crafts/projects/pumpkin-decorating-1009
If you are looking for unique costume ideas, you can find them at http://www.essortment.com/halloween-costume-ideas-50-unique-weird-ideas-52253.html. You can also find unique decorating ideas at http://www.halloween-website.com/decorating.htm
You can find decorations for your door online at this site: http://holidays.thefuntimesguide.com/2009/09/halloween_decorating_ideas.php. It has lots of ideas, as well as some videos of ideas, not just for decorating the door, but for decorating other areas of the house.
Martha Stewart (http://www.marthastewart.com/photogallery/halloween-decorating) has a plethora of tips and tricks for Hallowe'en decorating. Better Homes & Gardens also has a large selection of ideas, though they focus more on outdoor decor (www.bhg.com/halloween/outdoor-decorations/).
There are many great websites that offer great Halloween decorating ideas. Some of my favorites are BHG.com, marthastewart.com and hgtv.com, they all offer ideas no matter what your budget is.
Finding ways to be original with your Halloween decorations should not be a problem. Please see the following for additional information: www.halloween-website.com/decorating.htm
I like to use the Better Homes and Gardens website for my decorating ideas ( http://www.bhg.com/halloween/outdoor-decorations/ ). The great thing about this website is that it doesn't just give you Halloween ideas, but it has ideas for every holiday!
Why not go to the best. Good Housekeeping has an excellent site that has many popular ideas. You can see them at www.goodhousekeeping.com/home/...ideas/...pumpkin-decorating
Using old Christmas balls for Halloween is a unique idea. For additional information about decorating, please see the following website: holidays.thefuntimesguide.com/.../halloween_decorating_ideas
Haloween is one of the most popular decorating holidays their are. If you want it really scary, I suggest going for a realistic theme. Maybe some caution tape with some fake blood and chalk outlines.
The websiting for Southern Living has a video for "100 Ways to decorate for Fall, Halloween and Thanksgiving" that has some great ideas. http://www.southernliving.com/home-garden/holidays-occasions/fall-decorating-ideas-thanksgiving-halloween-00400000055475/ Other home websites like HGTV and Better Homes and Gardens have great ideas for fall and Halloween decor this time of year.