I find that if I make life too restrictive it doesn't work for me. I need little treats every now and again, so life doesn't feel too repetitive and dull. For me it's things like
a nice mug from the charity shop, or a plant pot
a magazine, I stick to cheaper ones or look for offers
new books from the library (free)
a face mask for 99p from superdrug
a nice foodie treat like olive oil bought with nectar points
right now it's daffodils for a pound
I bought olives from Lidl the other day because the jar was nice and I could resuse it, so it felt like a double treat
mini toiletries/travel sized ones which are cheaper and often 3 for 2, nice way of trying out new things
nice homeware bits like plant pots from poundland
a new notebook for a pound from the pound shop or charity shop
I will go out for a coffee with friends occasionally because it's a chance to properly catch up and nurture friendships. social connections are so important. and it's a day out. and all for the price of a coffee.