I'm not very handy so please bear with me. My back door's weatherstrip has dried up and is falling apart. I've got a nasty draft and have a rolled up towel at the base of the door for now. I was at Ace Hardware and there were a myriad of different strips and wasn't sure which one to get. I used a small mirror to look under the door to see what is installed but it's hard to see honestly. Seems like a simple thing to do and I feel kind of stupid for even asking for help on this. I figured I'll have to remove the door to do this once I figure it out. It's still too cold to have the door off for even 5 or 10 minutes right now. Would taking pictures of the door and some from a mirror under it be helpful? Thank you.