I just discovered that if you run SQL Server on your developer box and never bother to cleanup your log files, then perhaps they get to be a little big

.
Here is a script to quickly shrink a log file:
Use [YourDatabaseName]
Go
select name,recovery_model_desc from sys.databases
GO
Alter database [YourDatabaseName] SET RECOVERY SIMPLE
GO
Declare @LogFileLogicalName sysname
select @LogFileLogicalName=Name from sys.database_files where Type=1
print @LogFileLogicalName
DBCC Shrinkfile(@LogFileLogicalName,100)