If the snow effect gets on your nerves you can switch it off for your own profile.
Here is how to do it:
Go to 'Profile' by clicking on the Profile tab on the menu bar at the top of the screen.
From the 'drop down menu' select 'Account Setting'
Then select 'Modify Profile',
Then select 'Look & Layout'
When you arrive at that page scroll down until you find "Don't show snow" - select YES to stop snowing NO to have snow
Some members have said that having the snow effect on causes a problem in their browsers. I can't reproduce that problem - if you are effected (depending on the combination of Operating System and Browser that you use) then just switch the snow effect off.