One thing I love is wordplay.
I've always enjoyed reading and writing, but I never did a lot of verbal wordplay until I got together with my Hubby, who is a huge talker and punster and introduced me to the joys of Spoonerism.
On my other blog, there was a great comment on the cat's potty habits post; the ever witty Old Kitty Spoonerized "sturdy tools" into "Turdy Stools" which is CLASSIC, on so many levels.
(I gotta admit, I love poop jokes.)
Hubby and I have a few favorites:
Slow Moving becomes Mo Slooving
Taking a shower...Shaking a tower...or just "shake"
That band The Black Crows? Crack Blows!!
and the coup de grace--
Slacking off on the Job...Jacking off on the Slob...bwahahahaha!