When developing your campaign materials that may be reused across election cycles, do not use your district number. Redistricting will take place after the 2010 election and your district number will change for the 2012 election cycle. Thus, if you put your district on your signs you would either have to get stickers to cover up the old district number or purchase all new signs. That can get costly. Same goes for your domain name, if your website is johnsmithfor44b.com that would not apply in 2012. This is more easily fixed but why needlessly confuse visitors to your website in the first place. Besides, most voters don’t even know their district number so save yourself the headache in the future by planning ahead now.