Am used be going shopping and comeback with different stuffs because like mostly things I admired in the store the only thing which I don't substitute is grocery but with that sometimes go extra mile!!
At home, I shop out of necessity. I make shopping list 1 night before I go to supermarket, and leave in the early morning. Maybe, I spend only more money on alcohol than I would like.
I suppose there are different definitions of what is conservative/ lavish. Some people spend beyond their means, some buy much more than their needs. Others spend v little of their money, but could spend a lot/little compared others. When I was a student and just after I'd always spend at my limit. When I started earning much more, I found I wasn't as arsed about buying stuff, even tho I began to spend much more.So I spent a much smaller proportion of my income. What I spend also depends on who I'm around. Things like food and stuff, lots of stuff I honestly haven't a clue what the price is. But if I think something is a rip off, I wont buy it, even if its a small amount, I'll say "I won't be scammed".