Anyone else tired of finding out about hidden price differences after checkout?

ngl it continues to happen to me and it is making me somewhat mad.

the scrolling goes on and on and on. buy. it eventually. good. confident. click buy. done.

and then again later in the same night or next day, i just happen to look at the same thing somewhere and pay less. not even a little less. like why did i just give more money less.

that is when i began to realize there are actually a significant number of price differences between sites that partially lie outside the view of anyone but the seller and buyer. same product, same options, different prices based on the site. and sometimes it is time, sometimes it is just a feeling.

that irritating bit is not even the money. it is the time that went to waste. i assumed that i have done my homework. it turns out that I only made one or two calls and considered it a day.

now i have a habit of being more critical about shopping. i window shop and cross-shop and reason prices in different places before I make the commitment, and it costs more in the short-term, but that terrible sensation of overpayment is going to be avoided later.

wonder how other cheap people manage this.

are you restricted on how often you have to check prices and then either buy or do you always think there is a cheaper deal lurking somewhere?