How do I make commands start when I log in?

[Steven W. Orr]

I'm running kde-4.1.3 and I want xscreensaver and an xmodmap command to 
run when I log in. How do I do it?

TIA

-- 
Time flies like the wind. Fruit flies like a banana. Stranger things have  .0.
happened but none stranger than this. Does your driver's license say Organ ..0
Donor?Black holes are where God divided by zero. Listen to me! We are all- 000
individuals! What if this weren't a hypothetical question?
steveo at syslang.net
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