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

Like charitable contributions, often
She's in charge of the estate
The Mother Road
Fajitas, for one
Merged oil giants

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

ENOUGH!
Waldo of kids' books
Couldn't rush at rush hour
"That used to be the case," but .......
Sight from the Seine
Bronzing product
The LA or NY Times, digitally
"Wheel of Fortune," for one

HINT:
2. It has to do with words hidden in the answers.

Answers:

1)
Tax exempt
Executrix
Route Sixty-six
Tex-Mex dish
ExxonMobil

Each answer has two X's.

2)
That will do!
Sat in traffic
Not any longer
Eiffel Tower
Spray-on tan
On line newspaper
Game show

Each answer conceals the name of a type of fabric:

thaT WILLdo
SAT  IN traffic
not aNY LONger
eifFEL Tower
spRAY-ON tan
on LINE Newspaper
gaME SHow

Credits:
#1: LA Times Crossword
June 18, 2009 
Dan Naddor
EXTRA! EXTRA!

#2: LA Times Crossword
May 3, 2009
Gail Brabowski
TORN FABRIC