Is your party guest list larger than your house will hold? Here are some tips to alleviate space issues.

Stagger Party Times
Who says everyone has to show up at the same time? Send some party invites with 5-8pm as the party time and 6-9pm for the second batch of invites. This will help not having all your guests arrive within the same 15 minute window, but also because some guests will likely leave before some arrive.

Make space
Rearrange the furniture to make your house more open.

Use outside space
Can you take advantage of the backyard or patio? If so, set up lanterns or garden torches as well as small tables to set drinks on. Put food outside on tables to encourage some people to go outside the house rather than all inside.

Clear out the closet
Since you probably won't have guests in your bedroom, pull out all the coats hanging in your hall closet to guests can hang their coats there, and not put them on furniture that could otherwise have guests sitting on them.

Spread out the food
Don't put all the food in the kitchen or in one room. Spread it out to other rooms, that way people don't all congregate in the same room. The same goes for drinks.