It's easy to accumulate too much stuff and overwhelm your apartment with unneeded things. Apartment Therapy helps you make the purge with a list of things you probably own too many of and how to pare down.
Two or three sets of sheets for each bed is enough. Donate the extra sets along to animal shelters or cut them into smaller strips to use for rags. As for towels, consider using a hair towel, a bath towel and a hand towel for an entire week. Donate the surplus towels to the animal shelter along with your sheets. Be sure to save a couple of large towels to bring to the beach.
In the kitchen, unless you're a bartender, you probably don't need a separate type of glass for every type of drink. Consider stemless wine glasses that can be used for everything. Cull your tupperware collection and only keep a few that have their matching lids and recycle the rest. Even better, get rid of the plastic entirely and go for ceramic or glass dishes that can go from oven to table to the refrigerator or buy stretch-to-fit covers that transform any bowl or plate into a container.
Cleaning and grooming products can also accumulate. Weed out the stuff you don't use everyday to make yourself pretty and donate the rest to a homeless shelter or friends who might use it. As for cleaning products, find one all-purpose cleanser that will do all the jobs you need and toss the rest. Make-up is another place we can tend to hoard stuff. If something's been around more than a year, it's probably full of bacteria AND you'll probably never use it, so throw it away.