That we do, Jackie!  Let's appreciate them!

" Between a rock and a hard place..."

...having the dilemma of having to choose between a doubly hard and unpleasant choice...

726 - Between a rock and a hard place.726 - Between a rock and a hard place.

  .....so hard in coming up with ones we haven't already had...I guess we have also had..

" be grateful for small mercies..."
and
" practice what you peach..."

Has this one been used?   Murder will out.

I've used it for years and probably it was said to me by a parent, but it means if you've done something bad and you want to keep it a secret, somehow or other the deed will become known.

Mary Ann

863 - Practice what you preach

I could not see " be grateful for small mercies..."

Neither could I find "Murder will out"

He is.... " As sly as a fox..."
..someone you wouldn't trust...
and
" I wouldn't touch him with a barge pole..."  or some times said...." I wouldn't touch him with a ten foot pole.."
..someone you would want to keep your distance from...sometimes said when he would be the last person you would want to date...

490 - Sly as a fox

No " I wouldn't touch him with a ten foot pole.." on my list...

" He's making a mountain out of a molehill..."

..exaggerating a minor problem...

46 - A storm in a teacup.  or  making a mountain out of a molehill.

Bubble - "be grateful for small mercies" is where I would say "be thankful for small favors".  I have no idea whether either are in the list because I quit keeping track long ago.

Mary Ann

I think ---

1045 - " I wouldn't touch him/her/it with a ten foot pole.."
1046 - "be grateful for small mercies"
1047 - "be thankful for small favors"
1048 - " practice what you peach..."

I know this probably not an "old saying" or maybe it is and was borrowed but one of the handy boys at Girl Scout camp when I was about 13 or 14 wrote in my autograph book...

May your moccasins make tracks on the paths of Ioka  for many moons.!

I never forgot Mickey (the handyman), Ioka (my favorite Girl Scout Camp) or the what Mickey wrote even though that autograph book is long gone. 

" He - she has a one track mind..."

..When all you focus on, or talk about, is one subject...which could be anything from food, sport, but mainly when talking about the opposite sex...

Dont...

" tar with the same brush..."

...as said when...While its true that most people from that neighbourhood are violent, let’s not tar all of them with the same brush...as in dont class all as the same...

1049 - " He - she has a one track mind..."
1050 - Let’s not tar all of them with the same brush.

Here's a few I've heard or used around here but I didn't add because I think they might be too "local" (used just within my small circle).

Can't say ,not knowin.
Better than it was.  Used by repair people my son knows. Sort of accepting
   sub-quality work.                         
As fast as greased lightning
It's like trying to catch a greased pig.

I have a dozen or two more but they don't socially qualify for posting here.

Greased lightning and the greased pig are well known in my area.  Don't think I ever heard the other two.

Also used around here...as slippery as an eel

I'm putting "slippery as an eel" as a sub to the greased pig. I've heard them both but feel they are saying the same thing.

Did anyone ever try to catch a small pig - more fun than a person should be allowed to have. Between the squealing and the squiggling it gets one to laughing, which makes it just that more difficult to catch one. I have to laugh every time I think about the day a group of us, as teenagers, were sent to round up a bunch of escape piglets. In spite of not wanting to stop what we were doing, I think we all had a bit of fun.

Changing my mind & list. Adding the following because Jane also was familiar with them.

1051 - As fast as greased lightning
1052 - It's like trying to catch a greased pig.
          or - slippery as an eel

Good move, Rammel.

I too am familiar with " as fast as greased lightening..." so its also been around UK as well...

I lost count the times I was told...

" Practice makes perfect..."

..whenever I was in the process of giving up on doing something that I just wasn't getting the grasp of.....

I'm adding the second part as a sub to the first line. Similar, but different enough.

612 - "the cat's pajamas"
                    That's the cat's meow

I bet we dont have this one...

" A different kettle of fish..."

...would be said in our house by my parents....

...basically meaning, he-she is the odd one out, is totally different...or a different situation..

891A - this is a fine kettle of fish

Oh well, better luck next time...

How about...

Well, that's as clear as mud!

Meaning, I sure don't understand that.

Jane S, go for it, you might be on a roll...

While looking out the window today comes to mind a saying my late husband always used: "He was the type of person who would give you a straw hat in a blizzard"