1. The answers to the clues below will have something in common:

Cousin of "KEEP OUT"
Pay the bill in a restaurant for your guests
Result of all exits blocked
Manual transmission
Police officers' job at a large demonstration

2. The answers to the clues below will have something in common:

Moon-shaped bakery fare
Reveries of things that probably won't happen
Playground fixture
60's counter-culture poet who wrote "Howl"

Answers:

1. The answers contain the names of computer keys:

"DO NOT ENTER"
Pick up the TAB
No EXIT
Stick SHIFT
Crowd CONTROL

2. The answers contain the names of wrenches:

CRESCENT rolls
PIPE dreams
MONKEY bars
ALLEN Ginsberg 

Credits:
#1: LA Times Crossword
October 19, 2009
Mark Bickham
ALL KEYED UP

#2: LA Times Crossword
October 15, 2009
Todd Gross
WRENCHES