It’s the equivalent of $16.50 a month where I live and that is not an insignificant proportion of my monthly income. The adverts are constantly repeating and often for products and services that are actual scams. I firmly believe as soon as enough people pay… we’ll have to pay more or they will show us a smaller number of “specially selected” ads.
Jigsaw puzzles, the bigger the better. It keeps you constantly mentally engaged and the act of reaching for pieces and looking around is good physical activity too. I get back ache if I do a jigsaw session for the first time in a while. It really tires me out before bed and can prevent that rumination before falling asleep. Finally it’s really cheap, there are limitless puzzles in charity shops and even some libraries lend them.