Well avoid contaminating your lure/line with unpleasent smells. Perfume, cigs, etc.
Smallest peice of weed on a lure will discourage a fish
Do you know any good knots? Eagle claw is a good, fairly easy knot.
Are you fishing with the kids?
BIg lake small lake?
Targeting certain fish or just looking for excitement?
Morning and afternoon are generally best time to fish. Cat of curious already mentioned barometric pressure and how it affects fishing. Atmospheric pressure/weather and moon cycle can all play a part on when the fish are biting the most.
http://www.almanac.com/best-fishing-days
http://www.moonconnection.com/moon_phase_fishing.phtml
I recommend waking up early enough to get on the water with the sunrise. Hard to beat a good cup of coffee on the water, with the sunrise.
Also get everything ready the night before for morning trips. Nothing worse then waking up early to realise you're not prepared.
Are you good with handling fish?
As far as giving the dogs the guts... I guess if they want them. (probably won't)
Quick google search brings up "acute renal failure after ingesting fish gull bladder"
Just use the guts for fertilizer.