Friday my husband had outpatient spinal surgery (discectomy). Sunday he was in the ER. Monday night he was back in the ER and Tuesday he had a third spinal surgery. I had my knitting projects in a travel tray. When the ambulance arrived Sunday to take him to the ER, I grabbed my travel tray and my Side Effect, put them in my LS and headed for the ambulance. For Tuesday, when I knew it would be a longer wait, I used my Swift. It held a Lunchbot, bag of snacks, travel tray with three small knitting projects, PCSB ( clean shirt and bottoms for husband) and a Side Effect and a small water bottle.