I'm saving up for a home. Can somebody give me tips on saving money?

I don't spend that much when I am on my own but sometimes social necessity dictates that I spend a lot of money like when I'm with my girls from church bible study and they want us to bring food to the potluck. I know the cheap option is deep fried shredded potatoes and tomato and egg paste but is that really appropriate to bring when everybody else is bringing things that are more expensive? Also I'm losing weight and that means I will have to buy new pants soon so I also have to save money on clothes etc... And then my lap top charging keeps creating problems for me as well. Somebody give me advice please.
I'm saving up for a home. Can somebody give me tips on saving money?
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