Clear stuffy noses with the nasal aspirator

We have the heat on everywhere in our house. It has been like that since Tristan arrived in November. This winter was a cold one and it's still cold now, if you ask me. I just paid our water and heating bill from BC Hydro today and it is twice as much as it normally is. We're usually quite cheap when it comes to heating but with Tristan, we just have to. With the heat on all the time and Tristan and I at home every day, the air is very dry. Our noses get stuffy as a result and I have been using store bought saline drops to help him breathe better. Initially, I tried making my own saline drops but then it was a hassle since we were never sure if it was really sanitary for repeat usage and then storing it in the fridge made it cold. We decided to just buy some. A small 30 ml bottle costs around $6. I have been using it for a month or so and there's still some left. I find myself having to use it every 2-3 days and I normally use 2-3 drops in each nostril.

When Tristan was just a month or 2 old, we couldn't use the nasal aspirator or bulb syringe. His nostril was just not big enough and I didn't want to hurt him. I had to use a rolled up piece of kleenex and that worked quite well. Sometimes I even used a Q-tip (eeks!) but I only attempted that when his booger was within reach. Lately, I have been using the nasal aspirator and today it worked great. I had to squeeze it a few times and then finally, it all came out - yes! I was so pleased :) Of course, Tristan always freaks out when I try cleaning his nose. I feel so bad but I simply have to ignore the crying and focus on the task. Hopefully, I won't need to do this much longer. I wonder if we should invest in a humidifier machine. I'm thinking it should get better though. It's Spring but where is the spring weather? It snowed a bit today for crying out loud.