How do I protect my clients from sniffers?

How much protection is too much etc...

What do you do, to make your system solid...

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I found that, I couldn't get a connection to my wireless after
I changed my "ssid" from
"greyspace" to "greyspace's"

because the commands used, translate the ' quote
as a end of a string charactor or limitor.

As a result the command:

bt # aireplay-ng -1 0 -e greyspace's -a 00:44:2a:56:f1:4b -h 00:11:22:33:44:55 ath0

Would fail, and the error message would complain that
the ESSID "greyspace" was not valid.

This error message tell me that the aireplay-ng command
missed the "s" after the quote.

Please share your tips with me, even the common sense ones like
hide your SSID ....

Thanks