Any Non Buyers Here?

Way, way back to the original post. You stated you are using coin FOLDERS. I hope you do not mean actual folders where you press the coins into a slot and no reverse if visable. Note the back of the slots. The primary method to manufacturer those folders is to glue an entire sheet of hard paper and lay the slotted cardboard on that. Now the rear of the slots are also with glue. Your coins are now exposed to this glue and with moisture and time the backs of your coins will be discolored and possibly coated with that glue. I suggest you look into Albums with plastic slides so you can see both sides of the coins.
The next thing is I would suggest you try flea markets, garage/yard sales and estate sales. Not estate auctions. You may save yourself a lot of searching through massive amounts of coins for just a few worthwhile coins. Note that there are millions of people going to banks for coins every day and you will usually be looking through the same ones they just returned. The main thing at a garage/yard/estate sale is you have TO ASK. People, as a rule will not put money of any kind out on display but if you ask you may find a fortune just waiting for you. At one such sale I asked and was shown a jar with well over $35 in cents. The bottom was full of Indian cents. I offered $50 and walked away with thousands of dollars worth of coins. The main thing is you have to ask.
As to half dollars, Ike dollars, the new baby sized dollars. Most stores do not want them, most restaurants don't want them, people in a buisness that requires a coin changer being carried don't want them. Note. Coin changers used by train conductors do not have a slot fot those. Most cash registers do not have a place for those. Most vending machines are not set up to take those. Many people get confused between a Quarter and the baby sized dollars so they just don't use them. And $2 bills. Lots of stories about trying to use them and almost getting arrested.

Yeah, I am using the wrong folders I guess but I can't really justify going out and spending a ton more on books; I have another expensive hobby and need to not start again...

A laudrymat would be an awesome place for change! I know a lot of people who save their change in big jugs/bottles like that. My mother used to as well. I don't. I got a Scooby Doo small plastic thing; once it's filled, I empty it, wrap what I got after I look through. It holds about 50.00 or so (I put cents elsewhere) and that makes it easier.

I too have problems with the "D" mint. My older books, my problem is the "S" mint. They are a lot rarer.

Okay sorry for the delay but the sacs are not in ciculation and haven't been is the correct?

I'm in Kansas and we have a problem getting the "P" mint !! Except I don't know anyone from the East coast so........ I'm left to order it from the Mint or spend many hours looking through change (which I do)
I'm definately more and more into looking through "rolls" too....... but so far no luck.
Someone referred to "laundry mat" for change..... I like that idea ! I've hit car washes many many times.
Sac's haven't been in circulation for quite some time now......like the Kennedy half dollars only available in Proof and Mint sets or bought in rolls or bags from the U.S. Mint (which I do)
And yeah I agree with the comment earlier about coin collectors....... I've never sold a coin in my life....... I JUST COLLECT AND HOARD ! And I like all coins too......

Most of my collection I've put together from roll and pocket change searches. I've only ever bought 2 "lots" of coins to search from ebay. I have bought multiple pounds of forigen coins and found a few US coins in the mix.