Starting from the top left and reading left to right the answers are:
1. No two ways about it (no (2 ways) about "it")
2. I'm in between jobs
3. Six feet under ground
4. 49ers ( 4 "t", 9 "r's")
5. Search high and low ("search" high "and" low)
6. Love at first sight
7. Almost impossible
8. Head over heels in love
9. Three blind mice ( they have no "i"s )
10. I am underpaid and overworked
11. Dr. Doolittle
12. Sit down and shut up
13. Tucson, Arizona
14. Tuna Fish ( two "na fish" )
15. Three Musketeers
16. Excuse me
I STILL WANT MORE WACKY WORDS!