Possible Duplicates:
Improve Wireless Signal
How to get wireless coverage over my whole house?
What's the best way to increase the range of my 802.11g router?
The back of my house doesn't have WiFi Signal

I'm interested in ways that are both specific to certain routers, and generic.

When I say generic, I don't necessarily mean a one way that works for many.. but it can also be a generic answer, so mentioning solutions for different situations.

So not just the one router I mention. Explanations are important, as well as all the ways.

One i'm particularly interested in boosting the strength of is this wireless router/modem Netgear VMDG280

maybe anywhere in a big house with three floors, maybe from the garden.