Are those the white or pale green ones with long legs and tiny bodies? I just count on sharing my canoe with them at some point.
I have a favorite kind of spider - in fact, I consider them pets in my home. I read some years ago that jumping spiders tend to discourage other spiders from hanging around, and that seems to be the case here. I taught my wife and kids to not kill them, and to pick them up and move them to a safe place if they're in danger. The cobwebs they leave are a minor annoyance, but we rarely find other spiders in the house. The jumping spiders are cute and fuzzy up close, and can be fun to play with.
I am more concerned about hornets, yellowjackets and wasps in my area. Oh...and ticks.