I found someone on eBay who's selling Pant clips that keep your jeans from bunching in your boots. hope this helps! It looks like they come in a bunch of different colors.
[url=http://cgi.ebay.ca/PANT-CLIP-STIRRUPS-FOR-SKINNY-JEANS-IN-BOOTS-BURGUNDY_W0QQitemZ220482733381QQcategoryZ314QQcmdZ ViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSI% 26its%3DI%252BC%26itu%3DUCI%252BRTQ%26otn%3D10%26p s%3D63]PANT CLIP / STIRRUPS FOR SKINNY JEANS IN BOOTS-BURGUNDY on eBay.ca (item 220482733381 end time 18-Oct-09 20:28:13 EDT)[/url]