Decorate your rented apartment with low budgets
If there are rules that you as a renter must follow. Your landlord hands you a list of rules, and on it are the dreaded words, "No painting, wallpaper, or excessive hanging.", so too is making sure your place is personalized and stylish. Working within the boundaries of your landlord, it's little things like a new light fixture that will make an impact without costing a lot of time or money.
Try removable wallpaper
This stuff exists. It was first made for movie sets, but now there are dozens of products made just for renters.
Choosing color for your home
Just because you can't paint your walls doesn't mean you can't play with color in your space.
Baskets make for wonderful mobile storage options. Use them for magazine or book storage or as a general 'hold all' to hide clutter.
Make a flower wall
Using wall-friendly washi tape, try this simple flower wall you can use real or silk flowers for your desired effect.