LPT: Check your Amazon Subscribe & Save Often! The prices aren’t locked when you subscribe and they won’t notify you when it does increase. I had a Samsung water filtered subscription that saved me 10%. The first time I got it was $30 so it saved me $3. I was looking through my subscriptions and checked on the price of the filter, it’s over $43! Needless to say, I canceled and got a 4 pack at Costco for $75. Very shady practice at Amazon for not notifying you of price increases to s…