Storage solutions for a tiny house? Ive just moved from a 2 bedroom house near tons of storage...

Ive just moved from a 2 bedroom house near tons of storage space to a one bedroom house with no storage space atall. I dont know what to do beside all my stuff!!! I call for to throw stuff out but initially I would like some concept on where to put it adjectives. The house is rented and Im not permitted to knock anything into the walls or alter the house in anyway, so I cannot put up shelves. Feel greatly claustrophobic at the moment!!!!!
Answers:    Under the bed storage boxes are great and they can also be used under the couch or bringing up the rear things. Maybe some small bookcases can be used to store things on them in baskets or tubs?
catch stacker boxes for now after have a well brought-up clear out, be ruthless or stick it on ebay! have fun