Collecting is something that I've always thought would be really cool fashion-wise. It's common to collect shoes and basics and bangles (By collect, I don't mean go crazy spending all your money, I just mean you have a really decent range of different kinds that you can probably use for any outfit you need.) I personally don't tend to go to town with collecting, but I do think that if you have the money, investing in shoes is a good plan, because it's the one piece of clothing (Other than underwear etc) that you need to wear every single day. You can replace tops, skirts and jeans for a dress, but you can't replace shoes. You need shoes every time you leave the house. Shoes can be used for all different occasions, so it's nice to have a good range, but if you don't have the money to have a different shoe in 20 different colours, just invest on the basics like a nude pump, black pump, brown boots etc.
The one thing I'd say about collecting is don't buy it unless you really love it. The last thing you want to do is end up with things you'll never wear. Chances are, you won't even get any satisfaction if you buy things that you think are 'just ok.'
Thanks for reading! ☺