Some restaurants don’t have a highchair, namely Laughing Buddha (they do have a change table now) and relatives and friends who don’t have babies, usually don’t have highchairs.  I have a little fold up seat that can clip onto a chair, but sometimes I have so much to carry, and it is just one more thing, that I’d rather not carry.  Especially if I am downtown and going to the gym, I already have a backpack, diaper bag and Anders hanging off me in a sling.  So I’ve taken one of my Baba’s aprons (I love vintage aprons…and any vintage fabrics for that matter…sorry Baba, hope that doesn’t make you feel old) and used it to help secure Anderson while he is sitting in a chair.  It would only work with a baby that can sit really well and I’d have to, of course, carefully supervise him.  But an apron can roll up nice and compactly into the diaper bag, backpack or sling.  I’m thinking I could add two more ties to the bottom and make it tie up better.  I’ll have to find another apron though, because I like to wear Baba’s old apron.